Merge remote-tracking branch 'origin/main' into review/pr-1601

2026-11-08 12:23:59 +00:00 · 2026-11-06 17:54:23 +01:00
commit 61dfdc771e
@@ -217,7 +217,7 @@ The [Bhote Koshi event pack](public/events/bhote-koshi-2026/README.md), under `p

 | Dataset                                                                     | Folder                            | License                                                                                                   | Commercial use?                                  | Attribution                                                                 |
 | --------------------------------------------------------------------------- | --------------------------------- | --------------------------------------------------------------------------------------------------------- | ------------------------------------------------ | --------------------------------------------------------------------------- |
-| **Datacenters** (4,351) | `datacenters/` | **ODbL 1.0** (OpenStreetMap extract) | ✅ (attribution + share-alike on data) | © OpenStreetMap contributors (shared credit) |
+| **Datacenters** (4,352) | `datacenters/` | **ODbL 1.0** (OpenStreetMap extract) | ✅ (attribution + share-alike on data) | © OpenStreetMap contributors (shared credit) |
 | **Dams** (704) | `dams/` | **ODbL 1.0** (OpenInfraMap / OSM extract) | ✅ (attribution + share-alike on data) | © OpenStreetMap contributors (shared credit) + Open Infrastructure Map |
 | **Military area names** (36,466) | `osm_military_names/` | **ODbL 1.0** (OpenStreetMap, via Overture Maps) | ✅ (attribution + share-alike on data) | © OpenStreetMap contributors (shared credit) + Overture Maps Foundation |
 | **TeleGeography Submarine Cable Map** (712 cables + 1,917 landing points)   | `telegeography_submarine_cables/` | **CC BY-NC-SA 3.0**                                                                                       | ❌ **NonCommercial — remove for commercial use** | "© TeleGeography — submarinecablemap.com"                                   |
@@ -473,7 +473,7 @@ In the app, **Data Layers** groups them as Movement, Cameras, Infrastructure, Ev

 _The Space Missions layer replaying a Falcon 9 ascent — labeled `RECONSTRUCTED ESTIMATE`, scrubbable 0.25×–4×._

-**Also on the globe:** neighborhood overlays · an optional cockpit WX cloud effect. **Bundled static infrastructure:** Datacenters (4,351), Dams (704), and Submarine Cables (712).
+**Also on the globe:** neighborhood overlays · an optional cockpit WX cloud effect. **Bundled static infrastructure:** Datacenters (4,352), Dams (704), and Submarine Cables (712).

 ![Diving into the Bahamas and revealing labeled submarine cable routes beneath the globe](docs/media/09-undersea-cables.gif)

@@ -0,0 +1,4 @@
+- Add an adjustable event-age filter across S2 GhostMaps products, defaulting
+  to seven days with 1-, 3-, 14- and 30-day choices and an All markers option.
+  Preserve undated features, save the selected window and expire old events
+  while the map stays open. Thanks @dylanmaniatakes (#1528).
@@ -0,0 +1,3 @@
+- Keep keyless place search on a nearby exact match for names written in
+  non-Latin scripts instead of discarding the match and retrying without its
+  proximity ranking (mertkayacs, #1585).
@@ -0,0 +1,3 @@
+- Let the voice assistant read the storm you select in Cyclone advisories:
+  its official advisory, position, intensity and movement. Clearing the
+  selection and the storm leaving the feed are reported apart (kvnloo, #847).
@@ -0,0 +1,4 @@
+- Reduce dead-reckoning work for flights already hidden behind the horizon.
+  Hidden contacts update on a staggered one-in-13-ticks rotation (about once a
+  second) while visible contacts and contacts with fleet models retain the full
+  update path (Wilmer Alzate, #870).
@@ -0,0 +1,2 @@
+- Add Troll Housing to the Datacenters layer (4,352 features) by refreshing
+  Norway from OpenStreetMap data of 2026-10-05 (trygvehhh, #953).
@@ -250,7 +250,6 @@ style listeners. Synthetic fixtures cover privacy, acquisition, rendering,
 selection and card placement. Deterministic operation checks run in `npm test`;
 wall-clock budgets run in `npm run test:perf`. All 11 locales are supported.

-
 ## Prohibited & Restricted Airspace — FAA special-use airspace

 The Infrastructure group includes **Prohibited & Restricted Airspace** (`drone-airspace`,
@@ -742,6 +741,12 @@ geographic seams and releases on disable; forecast animation is not implied.
 NHC movement speed is converted from miles per hour to rounded knots by the
 proxy; advisory wind intensity is already in knots and is passed through.
 Cyclone markers, labels, tracks and cones are hidden beyond the horizon on every map source.
+Explicitly selecting a storm publishes one shared `weather-cyclones` record:
+advisory provenance, source position, the English classification name and,
+while the proxy serves its cache, the cache fetch time. The automatic row
+selection does not claim shared context; refreshes do not re-announce it.
+Clear or disable reports `deliberate`; a storm leaving the feed reports
+`evicted`, with no fallback.
 Consult the linked official advisory for safety decisions.

 Voice and HUD snapshots reuse the existing feedState classifier. Analyst follow-ups retain their original data provenance; current-view results append provenance without replacing legacy fields. HUD context and deterministic telemetry include non-nominal feed state.
@@ -4342,35 +4347,35 @@ nearby place—always use station selection. Unqualified “turn on/start the ra
 requests use Play; a qualified Play-shaped tool call is normalized to Select so
 its criteria cannot be silently ignored.

-| Layer                  | Source                                                                                                                                                                                          | File                                                  | Proxy                                                    | Update Interval                                                                   |
-| ---------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------- | -------------------------------------------------------- | --------------------------------------------------------------------------------- |
-| Live Flights ✈️        | OpenSky Network; bounded adsb.lol regional fallback                                                                                                                                             | `src/data/flights.js`                                 | `/api/flights` (OAuth + fallback)                        | 30s                                                                               |
-| Military Flights 🎖️    | adsb.lol /v2/mil                                                                                                                                                                                | `src/data/militaryFlights.js`                         | `/api/military`                                       | 15s                                                                               |
-| Live AIS Vessels 🚢    | AISStream websocket                                                                                                                                                                             | `src/data/aisLiveVessels.js`                          | `/api/vessels`                                          | 60s (+800ms visibility pass)                                                      |
-| Mapped Installations ⌖ | OpenFreeMap military areas; optional configured Overpass names and Google Places search | `src/data/militaryInstallations.js` | OpenFreeMap tiles, `/api/military-installations`, `/api/google/text-search` | viewport-driven; transient errors back off, missing capability switches to tiles |
-| Earthquakes            | USGS                                                                                                                                                                                            | `src/data/earthquakes.js`                             | —                                                        | 60s                                                                               |
-| Air quality            | ECCC MSC GeoMet OGC API (AQHI, Canada only)                                                                                                                                                      | `src/layers/airQuality/`                              | —                                                        | 20 min readings, 12 h station catalog                                             |
-| Satellites             | CelesTrak                                                                                                                                                                                       | `src/data/satellites.js`                              | `/api/celestrak`                                         | 120s                                                                              |
-| Space Missions (30d)   | Launch Library 2 + CelesTrak                                                                                                                                                                    | `src/data/rocketLaunches.js`                          | `/api/launches` + `/api/celestrak/active`                | 5 min                                                                             |
-| Traffic | Selectable TomTom / OpenStreetMap / Hybrid roads; optional TomTom flow (BYOK) | `src/data/traffic.js` | browser-direct OpenFreeMap tiles; `/api/tomtom` for flow | viewport-driven; capped tile cache |
-| CCTV                   | Austin + Caltrans (CA) + TfL London + Ontario 511 + Fintraffic (FI) + DriveBC (BC) + TxDOT (TX) + Estonia (Tallinn, Tarktee) + Live Traffic NSW + Open Calgary Open Data + Statens vegvesen (NO, stills + live HLS, Kartverket ground heights) + King County (WA) Open Data + WSDOT (WA) Open Data + NYC DOT TMC (opt-in) + City of Toronto RESCU + Catalonia (Servei Català de Trànsit) + Hong Kong Transport Department + FL511 (FL, opt-in) + Freeway Bureau, MOTC (Taiwan) + Houston TranStar (opt-in) + Autostrada del Brennero (IT, A22 stills) + Street View fallback | `src/data/cctv.js`                                    | `/api/cctv`                                              | 10s (active)                                                                      |
-| Radio                  | Radio Browser (public-domain station directory)                                                                                                                                                 | `src/data/radio.js`                                   | `/api/radio/stations`, `/api/radio/click/:uuid`          | 45 min directory refresh                                                          |
-| Transit 🚌             | Operator GTFS-Realtime VehiclePositions (7 keyless regions, `src/data/transitFeeds.js`)                                                                                                         | `src/layers/transit/` via `src/app/layers/transit.js` | `/api/transit`                                           | 15s (poll + delayed playback)                                                     |
-| Bikeshare 🚲           | GBFS (Lyft + BCycle + Social Bicycles + PBSC incl. Bike Share Toronto, Bike Itaú (Brazil), Bicing (Barcelona) and seven other Spanish cities + Urban Sharing, Entur, JCDecaux (Lillestrøm, Valencia, Seville) + nextbike (AMBici))                                                                                                                                        | `src/data/bikeshare.js`                               | `/api/gbfs`                                              | 60s                                                                               |
-| Directions 🧭          | OSRM on FOSSGIS servers (OpenStreetMap)                                                                                                                                                         | `src/data/directions.js`                              | `/api/route` (`steps=1`)                                 | on placement / mode change                                                        |
-| Datacenters ▣          | OSM extract (bundled)                                                                                                                                                                           | `src/data/infrastructure.js`                          | —                                                        | static                                                                            |
-| Dams ▰                 | OpenInfraMap/OSM extract (bundled)                                                                                                                                                              | `src/data/infrastructure.js`                          | —                                                        | static                                                                            |
-| Submarine Cables ◠     | TeleGeography public map (bundled)                                                                                                                                                              | `src/data/telegeographySubmarineCables.js`            | —                                                        | static                                                                            |
-| FIRMS Active Fires ▲   | NASA FIRMS live (VIIRS ×3 NRT + MODIS NRT, trailing 24h)                                                                                                                                        | `src/data/firmsHeatmap.js`                            | `/api/firms` (`FIRMS_MAP_KEY`)                           | 10 min (proxy TTL 30 min)                                                         |
-| Street Level 📷 | Mapillary street-level imagery (vector tiles, Graph API, MapillaryJS) | `src/layers/streetLevel/` via `src/app/layers/streetLevel.js` | `/api/mapillary/status`, `/api/mapillary/tiles/coverage/{z}/{x}/{y}` (`MAPILLARY_CLIENT_TOKEN`) | camera-driven (320 ms debounce, ≤9 tiles, server memory cache 24 h) |
-| Wind 🌬                 | NOAA GFS 10 m wind (keyless, 0.25°→1° grid; animated particles)                                                                                                                                 | `src/data/wind.js`                                    | `/api/wind`                                              | 1 h (forecast cycle)                                                              |
-| GNSS Integrity 📡 (`gnss-integrity`) | adsb.lol point snapshot, low navigation accuracy binned per 0.5° cell (GEV NIC/NACp threshold + gpsjam.org formula and bands, keyless, ODbL) | `src/layers/gnss/` via `src/app/layers/gnss.js` | `/api/gnss-integrity` | camera-driven (600 ms debounce, minimum 2.5 s between reads) + 60s poll (server cache 60 s; 30 min rolling window) |
-| S2 GhostMaps 👻 (`s2-ghostmaps`) | S2 Underground's public GhostMaps repository on GitHub (KMZ intel products, keyless, CC BY-NC-SA 4.0) | `src/layers/ghostMaps/` via `src/app/layers/ghostMaps.js` | `/api/ghostmaps/catalog`, `/api/ghostmaps/events` (server-sent events), `/api/ghostmaps/file/{product}` | branch head checked every 15 s; new commits pushed to the page; 5 min catalog backstop |
-| Sea Marks ⚓ (`sea-marks`) | OpenSeaMap seamark raster tiles (keyless; CC BY-SA 2.0 tiles, OSM data ODbL) | `src/data/osmOverlays.js` | — (browser-direct tiles) | on view (Cesium tile requests; no polling) |
-| Ski Pistes ⛷ (`ski-pistes`) | OpenSnowMap piste raster tiles (keyless; CC BY-SA tiles, OSM data ODbL; no bulk download) | `src/data/osmOverlays.js` | — (browser-direct tiles) | on view (Cesium tile requests; no polling) |
-| Fire Perimeters 🔥 | NIFC WFIGS current interagency perimeters (keyless, paged past the 2000-record cap); InciWeb catalog + incident page origin and update time checks for verified incident-page links | `src/layers/perimeters/` via `src/app/layers/perimeters.js` | `/api/fire-perimeters` + `/api/fire-perimeters/inciweb/*` | 5 min (server caches: catalog 1 h; publication 30 min) |
-| Prohibited & Restricted Airspace 🚫 | FAA Special Use Airspace prohibited (P) and restricted (R) zones (keyless FeatureServer, simplified geometry) | `src/layers/droneAirspace/` via `src/app/layers/droneAirspace.js` | `/api/drone-airspace` | 1 h (server cache 1 h; stale-on-error) |
-| Wildlife Sightings 🦉 | iNaturalist wildlife observed within 48 h (whales 7 d), per view; Acartia Salish Sea marine mammal coverage (keyless) | `src/layers/wildlifeSightings/` via `src/app/layers/wildlifeSightings.js` | `/api/inaturalist/observations`, `/api/inaturalist/grid`, `/api/acartia/sightings` | camera moveEnd (600 ms debounce; enable settles 300 ms) + 5 min (observations 5 / 10 min; tiles 15 min; stale ≤ 1 h / 24 h) |
+| Layer                                | Source                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | File                                                                      | Proxy                                                                                                   | Update Interval                                                                                                             |
+| ------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------- |
+| Live Flights ✈️                      | OpenSky Network; bounded adsb.lol regional fallback                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | `src/data/flights.js`                                                     | `/api/flights` (OAuth + fallback)                                                                       | 30s                                                                                                                         |
+| Military Flights 🎖️                  | adsb.lol /v2/mil                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | `src/data/militaryFlights.js`                                             | `/api/military`                                                                                         | 15s                                                                                                                         |
+| Live AIS Vessels 🚢                  | AISStream websocket                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | `src/data/aisLiveVessels.js`                                              | `/api/vessels`                                                                                          | 60s (+800ms visibility pass)                                                                                                |
+| Mapped Installations ⌖               | OpenFreeMap military areas; optional configured Overpass names and Google Places search                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | `src/data/militaryInstallations.js`                                       | OpenFreeMap tiles, `/api/military-installations`, `/api/google/text-search`                             | viewport-driven; transient errors back off, missing capability switches to tiles                                            |
+| Earthquakes                          | USGS                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | `src/data/earthquakes.js`                                                 | —                                                                                                       | 60s                                                                                                                         |
+| Air quality                          | ECCC MSC GeoMet OGC API (AQHI, Canada only)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | `src/layers/airQuality/`                                                  | —                                                                                                       | 20 min readings, 12 h station catalog                                                                                       |
+| Satellites                           | CelesTrak                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | `src/data/satellites.js`                                                  | `/api/celestrak`                                                                                        | 120s                                                                                                                        |
+| Space Missions (30d)                 | Launch Library 2 + CelesTrak                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | `src/data/rocketLaunches.js`                                              | `/api/launches` + `/api/celestrak/active`                                                               | 5 min                                                                                                                       |
+| Traffic                              | Selectable TomTom / OpenStreetMap / Hybrid roads; optional TomTom flow (BYOK)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | `src/data/traffic.js`                                                     | browser-direct OpenFreeMap tiles; `/api/tomtom` for flow                                                | viewport-driven; capped tile cache                                                                                          |
+| CCTV                                 | Austin + Caltrans (CA) + TfL London + Ontario 511 + Fintraffic (FI) + DriveBC (BC) + TxDOT (TX) + Estonia (Tallinn, Tarktee) + Live Traffic NSW + Open Calgary Open Data + Statens vegvesen (NO, stills + live HLS, Kartverket ground heights) + King County (WA) Open Data + WSDOT (WA) Open Data + NYC DOT TMC (opt-in) + City of Toronto RESCU + Catalonia (Servei Català de Trànsit) + Hong Kong Transport Department + FL511 (FL, opt-in) + Freeway Bureau, MOTC (Taiwan) + Houston TranStar (opt-in) + Autostrada del Brennero (IT, A22 stills) + Street View fallback | `src/data/cctv.js`                                                        | `/api/cctv`                                                                                             | 10s (active)                                                                                                                |
+| Radio                                | Radio Browser (public-domain station directory)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | `src/data/radio.js`                                                       | `/api/radio/stations`, `/api/radio/click/:uuid`                                                         | 45 min directory refresh                                                                                                    |
+| Transit 🚌                           | Operator GTFS-Realtime VehiclePositions (7 keyless regions, `src/data/transitFeeds.js`)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | `src/layers/transit/` via `src/app/layers/transit.js`                     | `/api/transit`                                                                                          | 15s (poll + delayed playback)                                                                                               |
+| Bikeshare 🚲                         | GBFS (Lyft + BCycle + Social Bicycles + PBSC incl. Bike Share Toronto, Bike Itaú (Brazil), Bicing (Barcelona) and seven other Spanish cities + Urban Sharing, Entur, JCDecaux (Lillestrøm, Valencia, Seville) + nextbike (AMBici))                                                                                                                                                                                                                                                                                                                                           | `src/data/bikeshare.js`                                                   | `/api/gbfs`                                                                                             | 60s                                                                                                                         |
+| Directions 🧭                        | OSRM on FOSSGIS servers (OpenStreetMap)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | `src/data/directions.js`                                                  | `/api/route` (`steps=1`)                                                                                | on placement / mode change                                                                                                  |
+| Datacenters ▣                        | OSM extract (bundled)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | `src/data/infrastructure.js`                                              | —                                                                                                       | static                                                                                                                      |
+| Dams ▰                               | OpenInfraMap/OSM extract (bundled)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | `src/data/infrastructure.js`                                              | —                                                                                                       | static                                                                                                                      |
+| Submarine Cables ◠                   | TeleGeography public map (bundled)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | `src/data/telegeographySubmarineCables.js`                                | —                                                                                                       | static                                                                                                                      |
+| FIRMS Active Fires ▲                 | NASA FIRMS live (VIIRS ×3 NRT + MODIS NRT, trailing 24h)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | `src/data/firmsHeatmap.js`                                                | `/api/firms` (`FIRMS_MAP_KEY`)                                                                          | 10 min (proxy TTL 30 min)                                                                                                   |
+| Street Level 📷                      | Mapillary street-level imagery (vector tiles, Graph API, MapillaryJS)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | `src/layers/streetLevel/` via `src/app/layers/streetLevel.js`             | `/api/mapillary/status`, `/api/mapillary/tiles/coverage/{z}/{x}/{y}` (`MAPILLARY_CLIENT_TOKEN`)         | camera-driven (320 ms debounce, ≤9 tiles, server memory cache 24 h)                                                         |
+| Wind 🌬                               | NOAA GFS 10 m wind (keyless, 0.25°→1° grid; animated particles)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | `src/data/wind.js`                                                        | `/api/wind`                                                                                             | 1 h (forecast cycle)                                                                                                        |
+| GNSS Integrity 📡 (`gnss-integrity`) | adsb.lol point snapshot, low navigation accuracy binned per 0.5° cell (GEV NIC/NACp threshold + gpsjam.org formula and bands, keyless, ODbL)                                                                                                                                                                                                                                                                                                                                                                                                                                 | `src/layers/gnss/` via `src/app/layers/gnss.js`                           | `/api/gnss-integrity`                                                                                   | camera-driven (600 ms debounce, minimum 2.5 s between reads) + 60s poll (server cache 60 s; 30 min rolling window)          |
+| S2 GhostMaps 👻 (`s2-ghostmaps`)     | S2 Underground's public GhostMaps repository on GitHub (KMZ intel products, keyless, CC BY-NC-SA 4.0)                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | `src/layers/ghostMaps/` via `src/app/layers/ghostMaps.js`                 | `/api/ghostmaps/catalog`, `/api/ghostmaps/events` (server-sent events), `/api/ghostmaps/file/{product}` | branch head checked every 15 s; new commits pushed to the page; 5 min catalog backstop                                      |
+| Sea Marks ⚓ (`sea-marks`)           | OpenSeaMap seamark raster tiles (keyless; CC BY-SA 2.0 tiles, OSM data ODbL)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | `src/data/osmOverlays.js`                                                 | — (browser-direct tiles)                                                                                | on view (Cesium tile requests; no polling)                                                                                  |
+| Ski Pistes ⛷ (`ski-pistes`)          | OpenSnowMap piste raster tiles (keyless; CC BY-SA tiles, OSM data ODbL; no bulk download)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | `src/data/osmOverlays.js`                                                 | — (browser-direct tiles)                                                                                | on view (Cesium tile requests; no polling)                                                                                  |
+| Fire Perimeters 🔥                   | NIFC WFIGS current interagency perimeters (keyless, paged past the 2000-record cap); InciWeb catalog + incident page origin and update time checks for verified incident-page links                                                                                                                                                                                                                                                                                                                                                                                          | `src/layers/perimeters/` via `src/app/layers/perimeters.js`               | `/api/fire-perimeters` + `/api/fire-perimeters/inciweb/*`                                               | 5 min (server caches: catalog 1 h; publication 30 min)                                                                      |
+| Prohibited & Restricted Airspace 🚫  | FAA Special Use Airspace prohibited (P) and restricted (R) zones (keyless FeatureServer, simplified geometry)                                                                                                                                                                                                                                                                                                                                                                                                                                                                | `src/layers/droneAirspace/` via `src/app/layers/droneAirspace.js`         | `/api/drone-airspace`                                                                                   | 1 h (server cache 1 h; stale-on-error)                                                                                      |
+| Wildlife Sightings 🦉                | iNaturalist wildlife observed within 48 h (whales 7 d), per view; Acartia Salish Sea marine mammal coverage (keyless)                                                                                                                                                                                                                                                                                                                                                                                                                                                        | `src/layers/wildlifeSightings/` via `src/app/layers/wildlifeSightings.js` | `/api/inaturalist/observations`, `/api/inaturalist/grid`, `/api/acartia/sightings`                      | camera moveEnd (600 ms debounce; enable settles 300 ms) + 5 min (observations 5 / 10 min; tiles 15 min; stale ≤ 1 h / 24 h) |

 GNSS Integrity samples a 250 nm circle around the Earth point under the screen
 centre. Camera reads debounce for 600 ms with a monotonic 2.5 s minimum gap;
@@ -5350,7 +5355,7 @@ silently demoting every later lookup for the session.

 ### Motion & Symbology Correctness (June 10, 2026)

- **Flights (commercial + military)** render one poll interval behind real time (30s/15s) and interpolate between two known feed-stamped fixes (OpenSky `time_position`; adsb.lol `receipt − seen_pos`). The display latency is an intentional product decision — do not "fix" it away. The whole fleet dead-reckons at ~12Hz (1m² write gating); aircraft get a 3-poll grace period (faded icon) before removal. When a position epoch pauses, both layers coast for at least 60 seconds of contact grace with an absolute five-minute ceiling. Source backoff marks each contact and the cockpit `STALE`; the cockpit then holds the exact layer position instead of continuing inertial flight. Repeated-position kinematic changes create a forward-only synthetic fix rather than mutating history, and grounded history is lifted only when no owned 3D model already controls its datum. A nominally successful worldwide OpenSky response whose own snapshot epoch is more than two minutes old prefers the existing 250-nm viewport-scoped adsb.lol fallback and labels the source/coverage accordingly when that upstream is available. If the fallback is also unavailable, the layer's freshness/error fields use the source epoch—never the cache receipt time—so the UI reports an old snapshot rather than “just now.”
+- **Flights (commercial + military)** render one poll interval behind real time (30s/15s) and interpolate between two known feed-stamped fixes (OpenSky `time_position`; adsb.lol `receipt − seen_pos`). The display latency is an intentional product decision — do not "fix" it away. The fleet dead-reckons at ~12Hz (1m² write gating); a contact already hidden behind the horizon whose last position still is re-reckons on a staggered one-in-13-ticks rotation (about once a second) instead, so the worldwide feed's ~13k contacts no longer cost a full pass when well under 1% are on screen. Anything that position puts in view, and any contact with a fleet model, takes the full pass immediately, and hidden-inclusive proximity queries read positions at most about a second old; aircraft get a 3-poll grace period (faded icon) before removal. When a position epoch pauses, both layers coast for at least 60 seconds of contact grace with an absolute five-minute ceiling. Source backoff marks each contact and the cockpit `STALE`; the cockpit then holds the exact layer position instead of continuing inertial flight. Repeated-position kinematic changes create a forward-only synthetic fix rather than mutating history, and grounded history is lifted only when no owned 3D model already controls its datum. A nominally successful worldwide OpenSky response whose own snapshot epoch is more than two minutes old prefers the existing 250-nm viewport-scoped adsb.lol fallback and labels the source/coverage accordingly when that upstream is available. If the fallback is also unavailable, the layer's freshness/error fields use the source epoch—never the cache receipt time—so the UI reports an old snapshot rather than “just now.”
 - **World-space headings at every angle** (`src/data/iconOrientation.js`): aircraft/vessel icon rotation uses the camera right/up basis per tick (alignedAxis always ZERO), which is exact at screen center and for orthographic/nadir views and remains stable through >180° tracked orbits. Perspective rays vary across the viewport, so off-center contacts at oblique pitch can diverge from an exact finite-difference window projection; a regression test pins that known regime, and field evidence decides whether to adopt exact projection with the basis method as fallback. Fleet rotations refresh on camera-pose change; tracked entities per frame. Billboards are horizon-culled via a shared EllipsoidalOccluder.
 - **Military/OpenSky reconciliation** (`src/data/militaryRegistry.js`): known-military ICAOs render amber in the flights layer (60s self-poll of the cached mil endpoint when the military layer is off) and are suppressed there while the military layer renders them.
 - **Satellites**: 838-sat core catalog (stations/visual/GPS/GLONASS/Galileo/GEO), tracking lands ~726km out via `viewFrom` (tracked entity owns a point graphic so the tracking camera engages), rings realign via primitive modelMatrix (no per-second rebuild flicker), optional `setParams({catalog:'dense'})` Starlink mode.
@@ -5881,8 +5886,11 @@ HTTP refusals and outages remain retryable. Searches share a 12-second total
 deadline, with Photon requests capped at six seconds each. Caller/application
 cancellation stops retries and late cache writes. Replacing a location search
 cancels the previous lookup; disposing its controls cancels the active lookup. Photon uses a soft proximity bias, up to five
-candidates, and an unbiased retry for name mismatches. A "place, region" query
-prefers a candidate named exactly for the place whose city, county, state,
+candidates, and an unbiased retry for name mismatches. Name comparison folds
+Latin accents while preserving letters and marks in other scripts, so a
+non-Latin name spelled exactly, marks included, keeps its proximity ranking. A
+leading "the" counts: "The Hague" does not take a nearby "Hague". A "place, region" query prefers a
+candidate named exactly for the place whose city, county, state,
 country or country code (or USA/UK) contains every word of the region, and a
 settlement or administrative area over a POI when both fit. Nearby results that
 fail that check are retried unbiased. After the region checks of both passes, a
@@ -6005,6 +6013,7 @@ request viewbox and continues searching without that geographic preference.

 - **What it shows.** Events ▸ **S2 GhostMaps** draws the current edition of S2 Underground's KMZ intel products from `github.com/s2underground/GhostMaps`. The products are the Common Intelligence Picture and the 30-day kinetic pull (both on by default), the Border Crisis Map, the Iran Common Intelligence Picture, Iran Kinetic Events, Yemen FLOT, and **Latest Drop**: the newest dated incident file outside those series, `0_Archive`, `Basedata` and `Reference Material`. Each product has a chip in the row. The chip choice is kept in `localStorage` (`gev.ghostmaps.products`) and falls back to the defaults when storage is blocked.
 - **Editions.** `src/layers/ghostMaps/catalog.js` (pure) matches whole repository paths per product. The newest edition wins by the date written in the file name, then by `Export_N`/`vN`. Undated names, such as the fixed 30-day file, are identified by blob sha. Files over 50 MiB are left out (the 62 MB census KMZ, for example). A renamed folder drops the product rather than matching elsewhere.
+- **Event age filter.** One **Event age** switch in the S2 GhostMaps row applies to every selected product: 1, 3, 7 (default), 14 or 30 days, or **All** (every marker). The choice is saved separately from product selection in `localStorage` (`gev.ghostmaps.ageDays`); missing, invalid or blocked storage falls back to seven days. Age comes only from the placemark's `Date of Event` (or `EventDate`/`Date`), never from report, prose or KMZ edition dates. Undated, unparseable and future dates stay visible. ArcGIS `M/D/YYYY` dates with optional AM/PM times and ISO dates are read as UTC when no zone is given; a date without a time covers its whole UTC day, so **1d** still shows yesterday's reports. Events age out every minute while the layer is on. Narrowing the window only removes markers; widening restores them from the cached KMZ. An open card stays while its marker is shown.
 - **Updates.** The repository is not ours, so there is no webhook. `server/providers/ghostMaps.js` starts with the first `/api/ghostmaps` request, so an install that never enables the layer never contacts GitHub.
  - It reads the branch head from git's smart-HTTP ref advertisement (`/info/refs?service=git-upload-pack`, about 0.5 KB, outside the REST rate limit) every `GHOSTMAPS_POLL_SECONDS` (15 s by default, 5 s minimum). Failures back off from 15 s to 5 min.
  - Only a new head costs REST calls: one recursive tree and one commit. An optional `GITHUB_TOKEN` raises the REST limit.
@@ -57,6 +57,6 @@ Consumers use the package exports, which do not import standalone application
 globals.

 Dataset files and source/license notices remain under `src/data/local_data/`.
-Their input counts are 4,351 datacenter features and 704 dam features. Cesium may
+Their input counts are 4,352 datacenter features and 704 dam features. Cesium may
 expand multipart geometries into multiple entities; entity and stem counts are
 different measurements. This change does not refresh or relicense the datasets.
@@ -347,6 +347,7 @@
  "src/layers/flights/tracking.js",
  "src/layers/flights/rendering.js",
  "src/layers/flights/testing.js",
+  "src/layers/flights/hiddenContactRotation.test.mjs",
  "src/layers/flights/evidence.js",
  "src/layers/flights/ingestion.js",
  "src/layers/flights/queries.js",
@@ -572,6 +572,7 @@
      "src/search/placeSearch.js",
      "src/search/google.js",
      "src/keylessGeocoder.js",
+      "src/data/placeNames.js",
      "src/search/geospatial.js",
      "src/search/http.js",
      "src/search/defaults.js",
@@ -2335,6 +2336,7 @@
      "src/app/layers/alprCameras.js",
      "src/app/layers/bikeshare.js",
      "src/app/layers/cctv.js",
+      "src/app/layers/cyclones.js",
      "src/app/layers/earthquakes.js",
      "src/app/layers/firms.js",
      "src/app/layers/flights.js",
@@ -3379,6 +3381,7 @@
      "src/app/layers/alprCameras.js",
      "src/app/layers/bikeshare.js",
      "src/app/layers/cctv.js",
+      "src/app/layers/cyclones.js",
      "src/app/layers/earthquakes.js",
      "src/app/layers/firms.js",
      "src/app/layers/flights.js",
@@ -28,6 +28,8 @@
 *   (vii) FAR SIDE — pins skip the depth test, so they are horizon-culled:
 *         seen from over the Indian Ocean no pin clearly behind the planet is
 *         shown; back over North America the near-side pins show again.
+ *   (viii) AGE — seven days is the default; shorter/longer windows and All
+ *         markers update the globe, and the age choice survives a reload.
 *
 * Screenshots go to qa-shots/ghostmaps-*.png (gitignored).
 *
@@ -224,6 +226,77 @@ async function main() {
    record('LIVE: the /api/ghostmaps/events stream is open', stream);
    await page.screenshot({ path: path.join(SHOTS_DIR, 'ghostmaps-live.png') });

+    const ageChips = await page.evaluate(
+      (id) =>
+        [
+          ...document.querySelectorAll(
+            `[data-layer-id="${id}"] [data-segmented-id="age"] [role="radio"]`,
+          ),
+        ].map((option) => ({
+          id: option.dataset.chipId,
+          active: option.getAttribute('aria-checked') === 'true',
+        })),
+      LAYER_ID,
+    );
+    record(
+      'AGE: seven days is the default with an All markers option',
+      live.ageDays === 7 &&
+        ageChips.length === 6 &&
+        ageChips
+          .filter((chip) => chip.active)
+          .map((chip) => chip.id)
+          .join() === 'age-7' &&
+        ageChips.some((chip) => chip.id === 'age-all'),
+    );
+    const selectAge = async (days) => {
+      await showRow(page);
+      const selector = `[data-layer-id="${LAYER_ID}"] [data-chip-id="age-${days ?? 'all'}"]`;
+      await page.waitForSelector(selector, { timeout: 15000 });
+      // Dispatch through the rendered button, matching the product-chip gate.
+      await page.$eval(selector, (button) => button.click());
+      await page.waitForFunction(
+        (id, age) => {
+          const s = window.__godsEyeView.dataManager.layers
+            .get(id)
+            .module.getStats();
+          return s.ageDays === age && !s.loading;
+        },
+        { timeout: TIMEOUT_MS },
+        LAYER_ID,
+        days,
+      );
+      return stats(page);
+    };
+    const all = await selectAge(null);
+    record(
+      'AGE: All markers restores old events without duplicate data sources',
+      all.count > live.count &&
+        (await sources(page)).length === live.products.length,
+      `${live.count} → ${all.count}`,
+    );
+    await page.reload({ waitUntil: 'domcontentloaded' });
+    await page.waitForFunction(() => window.__godsEyeView?.dataManager, {
+      timeout: TIMEOUT_MS,
+    });
+    await enableAndSettle(page);
+    const persistedAge = await stats(page);
+    record(
+      'AGE: All markers survives a reload',
+      persistedAge.ageDays === null && persistedAge.count === all.count,
+    );
+    const thirty = await selectAge(30);
+    const one = await selectAge(1);
+    const seven = await selectAge(7);
+    record(
+      'AGE: counts follow the window order and seven days restores the default',
+      one.count <= live.count &&
+        thirty.count >= live.count &&
+        thirty.count <= all.count &&
+        seven.count === live.count &&
+        seven.ageDays === 7,
+      `1d=${one.count}, 7d=${seven.count}, 30d=${thirty.count}, all=${all.count}`,
+    );
+
    // ---- (ii) PICK ----------------------------------------------------------
    const target = await page.evaluate((id) => {
      const gev = window.__godsEyeView;
@@ -1,7 +1,7 @@
 import { resolveCatalogSources } from './sourceComposition.js';
 import { createWeatherClock } from '../layers/weather/clock.js';
 import { createWeatherLayer } from '../layers/weather/index.js';
-import { createCyclonesLayer } from '../layers/cyclones/index.js';
+import { createApplicationCyclones } from './layers/cyclones.js';
 import { createWindLayer } from '../layers/wind/index.js';
 import { createLayerCatalog } from './catalog.js';
 import { LAYER_STATE_REGISTRY } from '../data/layerState.js';
@@ -182,7 +182,7 @@ export function createApplicationCatalog({
          id: 'weather-lightning',
          clock: weatherClock,
        }),
-        createCyclonesLayer({ feed: sources.cyclones }),
+        createApplicationCyclones({ feed: sources.cyclones }),
        ...createOsmOverlayLayers(),
        ...createInfrastructureLayers(localGeoJsonServices),
        createApplicationCables({ source: sources.cables }),
@@ -0,0 +1,10 @@
+import { createCyclonesLayer } from '../../layers/cyclones/index.js';
+import * as context from '../../data/contextStore.js';
+
+/** Wire cyclone selection to the application shared context. */
+export function createApplicationCyclones(options) {
+  return createCyclonesLayer({
+    context: typeof window !== 'undefined' ? context : null,
+    ...options,
+  });
+}
@@ -1,5 +1,10 @@
 # Test fixtures

+- `photon-moscow-search.json` - Photon responses for `Москва`, captured
+  2026-11-05 with and without a proximity bias near the Tajikistan namesake.
+  The fixture is trimmed to the fields the keyless geocoder consumes and is
+  used only by offline search tests. Data from OpenStreetMap contributors,
+  ODbL 1.0 (https://www.openstreetmap.org/copyright).
 - `tomtom-flow-austin-12-935-1686.pbf` — one real TomTom traffic-flow vector
  tile (Mapbox Vector Tile protobuf, layer `"Traffic flow"`), downtown Austin
  z12 x935 y1686, captured 2026-07-16 from
@@ -0,0 +1,110 @@
+{
+  "biased": {
+    "features": [
+      {
+        "geometry": {
+          "type": "Point",
+          "coordinates": [71.8339931, 38.948412]
+        },
+        "properties": {
+          "name": "Москва",
+          "country": "Тоҷикистон"
+        }
+      },
+      {
+        "geometry": {
+          "type": "Point",
+          "coordinates": [37.6063916, 55.625578]
+        },
+        "properties": {
+          "name": "Москва",
+          "country": "Россия"
+        }
+      },
+      {
+        "geometry": {
+          "type": "Point",
+          "coordinates": [37.6174782, 55.7505412]
+        },
+        "properties": {
+          "name": "Москва",
+          "country": "Россия"
+        }
+      },
+      {
+        "geometry": {
+          "type": "Point",
+          "coordinates": [37.0536908, 55.7098009]
+        },
+        "properties": {
+          "name": "Москва",
+          "country": "Россия"
+        }
+      },
+      {
+        "geometry": {
+          "type": "Point",
+          "coordinates": [32.163334, 56.917778]
+        },
+        "properties": {
+          "name": "Москва",
+          "country": "Россия"
+        }
+      }
+    ]
+  },
+  "unbiased": {
+    "features": [
+      {
+        "geometry": {
+          "type": "Point",
+          "coordinates": [37.6063916, 55.625578]
+        },
+        "properties": {
+          "name": "Москва",
+          "country": "Россия"
+        }
+      },
+      {
+        "geometry": {
+          "type": "Point",
+          "coordinates": [37.6174782, 55.7505412]
+        },
+        "properties": {
+          "name": "Москва",
+          "country": "Россия"
+        }
+      },
+      {
+        "geometry": {
+          "type": "Point",
+          "coordinates": [37.0536908, 55.7098009]
+        },
+        "properties": {
+          "name": "Москва",
+          "country": "Россия"
+        }
+      },
+      {
+        "geometry": {
+          "type": "Point",
+          "coordinates": [32.163334, 56.917778]
+        },
+        "properties": {
+          "name": "Москва",
+          "country": "Россия"
+        }
+      },
+      {
+        "geometry": {
+          "type": "Point",
+          "coordinates": [71.8339931, 38.948412]
+        },
+        "properties": {
+          "name": "Москва",
+          "country": "Тоҷикистон"
+        }
+      }
+    ]
+  }
+}
@@ -82,7 +82,7 @@ test('infrastructure factory preserves identity and creates independent state wi

 test('dataset URLs still name the complete bundled sources', () => {
  for (const [file, count] of [
-    ['datacenters', 4351],
+    ['datacenters', 4352],
    ['dams', 704],
  ]) {
    const lines = readFileSync(
@@ -5,7 +5,7 @@ layer.

 - Source: OpenStreetMap contributors
 - License: Open Database License (ODbL) 1.0
- Feature count: 4,351
+- Feature count: 4,352
 - Runtime file: `datacenters.geojsonl`

 The public-release snapshot removes contact-oriented tags such as email, phone,
@@ -16,3 +16,12 @@ ODbL 1.0 with the required OpenStreetMap attribution.

 The original extraction date and query were not recorded alongside this
 snapshot. Future refreshes should record both before replacing the file.
+
+## Norway refresh
+
+Features inside Geofabrik's Norway boundary (`norway.poly`, with Svalbard) come
+from a newer extract than the rest of the file. Contact tags are dropped as above.
+
+- Extract: Geofabrik `norway-261005.osm.pbf`, OSM data
+  2026-10-05T20:21:35Z, MD5 `1d2cfdeb98980fce11b8891d0f9146c0`
+- Filter: `osmium tags-filter nwr/telecom=data_center nwr/building=data_center`
@@ -3770,15 +3770,15 @@
 {"id":939340882,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[21.021364183,52.315373019],[21.02232433,52.315435883],[21.022363641,52.315209656],[21.021403578,52.315146875],[21.021364183,52.315373019]]]},"properties":{"id":11407,"tags":{"name":"T-Mobile Warszawa-Szlachecka","telecom":"data_center","building":"office","building:levels":"3"},"type":"data_center","osm_id":939340882}}
 {"id":1005973518,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[21.021325375,52.315595978],[21.022285857,52.315658423],[21.02232433,52.315435883],[21.021364183,52.315373019],[21.021325375,52.315595978]]]},"properties":{"id":11976,"tags":{"telecom":"data_center","building":"office","building:levels":"3"},"type":"data_center","osm_id":1005973518}}
 {"id":1156823776,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[21.115130857,52.235385942],[21.115189866,52.236349777],[21.115232027,52.236667954],[21.115818174,52.237174556],[21.116175578,52.237468677],[21.117262124,52.236985628],[21.11728157,52.236976576],[21.117262795,52.236960985],[21.117340495,52.236926033],[21.117360276,52.2369433],[21.117447532,52.236904491],[21.11804097,52.236654459],[21.118030996,52.236645742],[21.118041054,52.236641719],[21.116603055,52.235624072],[21.116518984,52.235676375],[21.115986231,52.235696659],[21.115954966,52.235361551],[21.115130857,52.235385942]]]},"properties":{"id":15342,"tags":{"name":"Atman Data Center Warsaw-1","telecom":"data_center","website":"https://www.atman.pl"},"type":"data_center","osm_id":1156823776}}
-{"id":7405586142,"type":"Feature","geometry":{"type":"Point","coordinates":[5.598350034,58.860111293]},"properties":{"id":24849,"tags":{"name":"Maan Group","telecom":"data_center","operator":"Privat"},"type":"data_center","osm_id":7405586142}}
+{"id":7405586142,"type":"Feature","geometry":{"type":"Point","coordinates":[5.5983501,58.8601113]},"properties":{"id":24849,"tags":{"name":"Maan Group","opening_hours":"24/7","operator":"Privat","telecom":"data_center"},"type":"data_center","osm_id":7405586142}}
 {"id":481615983,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[9.572510149,56.481777951],[9.574069938,56.484921751],[9.57465357,56.48483349],[9.574639572,56.484805243],[9.574700676,56.484795939],[9.574714925,56.484824857],[9.575298557,56.484736595],[9.57454888,56.483225422],[9.574609229,56.483216369],[9.574510155,56.483016629],[9.574449722,56.483025849],[9.573738769,56.481592795],[9.573155137,56.481680972],[9.573170643,56.481712321],[9.573109539,56.481721625],[9.573093781,56.48168969],[9.572510149,56.481777951]]]},"properties":{"id":7881,"tags":{"telecom":"data_center","building":"data_center","operator":"Apple","wikidata":"Q19721053","wikipedia":"en:Foulum Data Center","description":"Apple Datacenter"},"type":"data_center","osm_id":481615983}}
 {"id":618756435,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[10.500360092,57.318668738],[10.500399236,57.318671672],[10.500382891,57.318734871],[10.500552038,57.318744175],[10.500545249,57.318787677],[10.500501495,57.318785666],[10.500458999,57.318957746],[10.500970295,57.31899647],[10.501009187,57.318847189],[10.501084959,57.318852888],[10.50111966,57.318719197],[10.500843896,57.318698159],[10.500865521,57.318615178],[10.500859235,57.318614759],[10.500869461,57.318575699],[10.500954537,57.318582153],[10.501022347,57.31832223],[10.500736691,57.318300437],[10.500669133,57.318559689],[10.500674162,57.318560025],[10.500664272,57.318598498],[10.500383981,57.318577124],[10.500360092,57.318668738]]]},"properties":{"id":8842,"tags":{"ref":"AAL01-01","name":"Prime Data Centers - Saeby Campus AAL01","telecom":"data_center","website":"https://primedatacenters.com/locations/saeby/","building":"industrial","operator":"Prime Data Centers"},"type":"data_center","osm_id":618756435}}
-{"id":-14367602,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[11.002243225,59.633471864],[11.003903261,59.633446551],[11.007046726,59.633399696],[11.006983443,59.632420941],[11.006982772,59.63227057],[11.006911023,59.632265289],[11.006852936,59.632253973],[11.006765848,59.632228576],[11.00671782,59.632205275],[11.006119687,59.632213573],[11.006119352,59.632202592],[11.006118933,59.63219245],[11.005930424,59.632194378],[11.005923635,59.632120869],[11.005980799,59.632120031],[11.005979542,59.632104524],[11.005977027,59.63206865],[11.00597225,59.631998242],[11.005412171,59.632035541],[11.005286945,59.632043839],[11.00527848,59.632044342],[11.003707962,59.632147272],[11.003107483,59.63219178],[11.002741864,59.632235533],[11.002729375,59.63223788],[11.002345987,59.632309294],[11.002308352,59.632316251],[11.002302066,59.632477351],[11.002277088,59.632913881],[11.002243225,59.633471864]]]},"properties":{"id":107,"tags":{"name":"STACK Infrastructure OSL04","type":"multipolygon","telecom":"data_center","website":"https://www.stackinfra.com","operator":"Stack Infrastructure","operator:wikidata":"Q115477173"},"type":"data_center","osm_id":-14367602}}
+{"id":-14367602,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[11.0022433,59.6334719],[11.0022771,59.6329139],[11.0023021,59.6324774],[11.0023084,59.6323163],[11.002346,59.6323093],[11.0027294,59.6322379],[11.0027419,59.6322356],[11.0031075,59.6321918],[11.003708,59.6321473],[11.0052785,59.6320444],[11.005287,59.6320439],[11.0054122,59.6320356],[11.0059723,59.6319983],[11.0059771,59.6320687],[11.0059796,59.6321046],[11.0059808,59.6321201],[11.0059237,59.6321209],[11.0059305,59.6321944],[11.006119,59.6321925],[11.0061194,59.6322026],[11.0061197,59.6322136],[11.0067179,59.6322053],[11.0067659,59.6322286],[11.006853,59.632254],[11.0069111,59.6322653],[11.0069828,59.6322706],[11.0069835,59.632421],[11.0070468,59.6333997],[11.0039033,59.6334466],[11.0022433,59.6334719]]]},"properties":{"id":107,"tags":{"landuse":"industrial","name":"STACK Infrastructure OSL04","operator":"Stack Infrastructure","operator:wikidata":"Q115477173","telecom":"data_center","website":"https://www.stackinfra.com","type":"multipolygon"},"type":"data_center","osm_id":-14367602}}
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-{"id":1161764012,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[10.992826324,59.757448761],[10.994530281,59.757601396],[10.994634888,59.757303168],[10.992928332,59.757152545],[10.992826324,59.757448761]]]},"properties":{"id":15426,"tags":{"name":"Green Mountain Ytre Enebakk","telecom":"data_center","website":"https://greenmountain.no/","building":"industrial"},"type":"data_center","osm_id":1161764012}}
+{"id":935092287,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[10.9914674,59.7590241],[10.9916936,59.7588272],[10.9919389,59.7588987],[10.9926301,59.7582971],[10.9934098,59.7585243],[10.9927876,59.7590658],[10.9928136,59.7590734],[10.9928456,59.7590454],[10.992977,59.7590835],[10.9930831,59.7589905],[10.9931819,59.7590191],[10.9931289,59.7590656],[10.9932917,59.7591127],[10.9930223,59.759349],[10.9930739,59.7593639],[10.9929482,59.7594743],[10.992774,59.759424],[10.992781,59.759407],[10.9914674,59.7590241]]]},"properties":{"id":11377,"tags":{"building":"warehouse","name":"Green Mountain Ytre Enebakk","ref:bygningsnr":"300752944","source":"Norway Orthophoto 2024;https://greenmountain.no/data-center/osl1-enebakk/","telecom":"data_center","website":"https://greenmountain.no/"},"type":"data_center","osm_id":935092287}}
+{"id":1161764012,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[10.9928264,59.7574488],[10.9929284,59.7571526],[10.9946349,59.7573032],[10.9945303,59.7576014],[10.9928264,59.7574488]]]},"properties":{"id":15426,"tags":{"building":"industrial","name":"Green Mountain Ytre Enebakk","source":"Norway Orthophoto 2024;https://greenmountain.no/data-center/osl1-enebakk/","telecom":"data_center","website":"https://greenmountain.no/"},"type":"data_center","osm_id":1161764012}}
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 {"id":80871917,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[10.83408892,59.938588981],[10.834305927,59.938720996],[10.834575992,59.938720996],[10.834574987,59.938736],[10.834581943,59.938736922],[10.834579932,59.938771958],[10.834736925,59.938771958],[10.834734997,59.93893792],[10.836717988,59.938944961],[10.836717988,59.938983937],[10.836817984,59.938983937],[10.83681899,59.938944961],[10.836844974,59.938944961],[10.836846985,59.938774976],[10.836841956,59.938774976],[10.836842962,59.938744968],[10.836849919,59.938744968],[10.836851931,59.938653941],[10.836683957,59.938652935],[10.836684125,59.938640278],[10.836686975,59.938414973],[10.83490297,59.938406926],[10.834899953,59.938646984],[10.834812949,59.938645978],[10.83481496,59.938551933],[10.834579932,59.938550927],[10.834580938,59.938564925],[10.834567946,59.938564925],[10.834567946,59.938551933],[10.834089926,59.938549922],[10.83408892,59.938588981]]]},"properties":{"id":1464,"tags":{"name":"Bulk Data Centers Oslo Internet Exchange","telecom":"data_center","website":"https://bulkinfrastructure.com/data-centers/locations/os-ix","building":"industrial","ref:bygningsnr":"80709943"},"type":"data_center","osm_id":80871917}}
 {"id":12158409495,"type":"Feature","geometry":{"type":"Point","coordinates":[9.689363435,62.59439936]},"properties":{"id":28723,"tags":{"name":"VisBook AS","telecom":"data_center","website":"https://visbook.com/"},"type":"data_center","osm_id":12158409495}}
@@ -4349,3 +4349,4 @@
 {"id":540895898,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[101.71747909,56.303855963],[101.71782015,56.304420065],[101.721113819,56.303806929],[101.720772759,56.303242994],[101.71747909,56.303855963]]]},"properties":{"id":8271,"tags":{"name":"Битривер Рус","name:en":"Bitriver Rus","name:ru":"Битривер Рус","telecom":"data_center","website":"https://bitriver.farm/","building":"data_center"},"type":"data_center","osm_id":540895898}}
 {"id":1082803064,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[123.948021193,47.340264299],[123.948354625,47.340268239],[123.948490663,47.340269831],[123.948488568,47.340349292],[123.948809762,47.340353064],[123.948811942,47.340267485],[123.948918643,47.340268658],[123.948922918,47.340137817],[123.948023959,47.340126082],[123.948021193,47.340264299]]]},"properties":{"id":13377,"tags":{"name":"联通云数据中心·齐齐哈尔","name:en":"Unicom Data Center of Qiqihar","name:zh":"联通云数据中心·齐齐哈尔","telecom":"data_center","building":"yes","name:zh-Hans":"联通云数据中心·齐齐哈尔","name:zh-Hant":"聯通雲數據中心·齊齊哈爾"},"type":"data_center","osm_id":1082803064}}
 {"id":442479059,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[142.76019226,46.910096898],[142.760192427,46.910325724],[142.760447656,46.910328155],[142.760460397,46.910102263],[142.76019226,46.910096898]]]},"properties":{"id":7471,"tags":{"telecom":"data_center","building":"yes"},"type":"data_center","osm_id":442479059}}
+{"id":1551029155,"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[7.1069147,62.8627625],[7.1071207,62.8621617],[7.1075917,62.8616616],[7.1088647,62.8620476],[7.1106308,62.862645],[7.1098655,62.8632827],[7.1089604,62.8630042],[7.1086734,62.8632156],[7.1069147,62.8627625]]]},"properties":{"id":29471,"tags":{"layer":"-1","loc_name":"Troll Housing Klempertåsen","name":"Troll Housing","operator":"Troll Housing AS","telecom":"data_center","website":"https://www.trollhousing.no/"},"type":"data_center","osm_id":1551029155}}
@@ -11,17 +11,16 @@ const FOLD = {
 };

 /**
- * Comparable form of a place name, shared by the bundled packs, the
- * OpenFreeMap street and grounds matchers and the Nominatim server: case
- * folded, accents removed from Latin letters only, punctuation and symbols
- * collapsed to single spaces, and a leading "the" dropped. Other scripts keep
- * their marks, so "कुल मार्ग" and "काली मार्ग" stay distinct while "São Paulo",
- * "sao paulo" and "SÃO PAULO!" meet.
+ * Script-aware fold of a place name: case folded, accents removed from Latin
+ * letters only, punctuation and symbols collapsed to single spaces. Other
+ * scripts keep their marks, so "कुल मार्ग" and "काली मार्ग" stay distinct while
+ * "São Paulo", "sao paulo" and "SÃO PAULO!" meet. Every word is kept: "The
+ * Hague" is not "Hague".
 *
 * @param {unknown} value
 * @returns {string}
 */
-export function foldPlaceName(value) {
+export function foldPlaceText(value) {
  return String(value ?? '')
    .toLowerCase()
    .replace(/[ßøæłđıœþ]/g, (c) => FOLD[c])
@@ -29,8 +28,19 @@ export function foldPlaceName(value) {
    .replace(/(\p{Script=Latin})\p{M}+/gu, '$1')
    .normalize('NFKC')
    .replace(/[^\p{L}\p{M}\p{N}]+/gu, ' ')
-    .trim()
-    .replace(/^the /, '');
+    .trim();
+}
+
+/**
+ * Comparable form of a place name, shared by the bundled packs, the
+ * OpenFreeMap street and grounds matchers and the Nominatim server:
+ * `foldPlaceText` with a leading "the" dropped.
+ *
+ * @param {unknown} value
+ * @returns {string}
+ */
+export function foldPlaceName(value) {
+  return foldPlaceText(value).replace(/^the /, '');
 }

 /**
@@ -3466,5 +3466,12 @@
  "Open {name} on Acartia": "فتح {name} على Acartia",
  "iNaturalist": "iNaturalist",
  "iNaturalist contributors · licences per record": "مساهمو iNaturalist · التراخيص لكل سجل",
-  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "مساهمو iNaturalist · Acartia {count} (بحر ساليش) · التراخيص لكل سجل"
+  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "مساهمو iNaturalist · Acartia {count} (بحر ساليش) · التراخيص لكل سجل",
+  "{days}d": "{days}ي",
+  "All markers": "كل العلامات",
+  "Show markers of every age": "عرض العلامات من جميع الأعمار",
+  "Maximum event age: {days}d; undated markers are kept": "الحد الأقصى لعمر الحدث: {days} يوم؛ تُحفظ العلامات غير المؤرخة",
+  "event age filter|All": "الكل",
+  "Event age": "عمر الحدث",
+  "Event age: {days}d · undated kept": "عمر الحدث: {days} يوم · الاحتفاظ بغير المؤرخ"
 }
@@ -3166,5 +3166,12 @@
  "Open {name} on Acartia": "{name} auf Acartia öffnen",
  "iNaturalist": "iNaturalist",
  "iNaturalist contributors · licences per record": "iNaturalist-Beitragende · Lizenzen je Eintrag",
-  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "iNaturalist-Beitragende · Acartia {count} (Salish-See) · Lizenzen je Eintrag"
+  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "iNaturalist-Beitragende · Acartia {count} (Salish-See) · Lizenzen je Eintrag",
+  "{days}d": "{days}T",
+  "All markers": "Alle Markierungen",
+  "Show markers of every age": "Markierungen jeden Alters anzeigen",
+  "Maximum event age: {days}d; undated markers are kept": "Maximales Ereignisalter: {days} Tage; undatierte Markierungen bleiben",
+  "event age filter|All": "Alle",
+  "Event age": "Ereignisalter",
+  "Event age: {days}d · undated kept": "Ereignisalter: {days} Tage · undatierte bleiben"
 }
@@ -3241,5 +3241,12 @@
  "Open {name} on Acartia": "Abrir {name} en Acartia",
  "iNaturalist": "iNaturalist",
  "iNaturalist contributors · licences per record": "Colaboradores de iNaturalist · licencias por registro",
-  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "Colaboradores de iNaturalist · Acartia {count} (mar de Salish) · licencias por registro"
+  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "Colaboradores de iNaturalist · Acartia {count} (mar de Salish) · licencias por registro",
+  "{days}d": "{days}d",
+  "All markers": "Todos los marcadores",
+  "Show markers of every age": "Mostrar marcadores de cualquier antigüedad",
+  "Maximum event age: {days}d; undated markers are kept": "Antigüedad máxima: {days} días; se conservan los marcadores sin fecha",
+  "event age filter|All": "Todos",
+  "Event age": "Antigüedad",
+  "Event age: {days}d · undated kept": "Antigüedad: {days} días · se conservan los marcadores sin fecha"
 }
@@ -3241,5 +3241,12 @@
  "Open {name} on Acartia": "Ouvrir {name} sur Acartia",
  "iNaturalist": "iNaturalist",
  "iNaturalist contributors · licences per record": "Contributeurs iNaturalist · licences par observation",
-  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "Contributeurs iNaturalist · Acartia {count} (mer des Salish) · licences par observation"
+  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "Contributeurs iNaturalist · Acartia {count} (mer des Salish) · licences par observation",
+  "{days}d": "{days}j",
+  "All markers": "Tous les marqueurs",
+  "Show markers of every age": "Afficher les marqueurs de tout âge",
+  "Maximum event age: {days}d; undated markers are kept": "Ancienneté maximale : {days} j ; marqueurs sans date conservés",
+  "event age filter|All": "Tous",
+  "Event age": "Ancienneté",
+  "Event age: {days}d · undated kept": "Ancienneté : {days} j · marqueurs sans date conservés"
 }
@@ -3241,5 +3241,12 @@
  "Open {name} on Acartia": "Apri {name} su Acartia",
  "iNaturalist": "iNaturalist",
  "iNaturalist contributors · licences per record": "Contributori di iNaturalist · licenze per osservazione",
-  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "Contributori di iNaturalist · Acartia {count} (Mare dei Salish) · licenze per osservazione"
+  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "Contributori di iNaturalist · Acartia {count} (Mare dei Salish) · licenze per osservazione",
+  "{days}d": "{days}g",
+  "All markers": "Tutti gli indicatori",
+  "Show markers of every age": "Mostra gli indicatori di qualsiasi età",
+  "Maximum event age: {days}d; undated markers are kept": "Età massima degli eventi: {days} giorni; indicatori senza data mantenuti",
+  "event age filter|All": "Tutti",
+  "Event age": "Età degli eventi",
+  "Event age: {days}d · undated kept": "Età degli eventi: {days} giorni · senza data mantenuti"
 }
@@ -3091,5 +3091,12 @@
  "Open {name} on Acartia": "Acartiaで{name}を開く",
  "iNaturalist": "iNaturalist",
  "iNaturalist contributors · licences per record": "iNaturalist の投稿者 · ライセンスは記録ごと",
-  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "iNaturalist の投稿者 · Acartia {count}（セイリッシュ海） · ライセンスは記録ごと"
+  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "iNaturalist の投稿者 · Acartia {count}（セイリッシュ海） · ライセンスは記録ごと",
+  "{days}d": "{days}日",
+  "All markers": "すべてのマーカー",
+  "Show markers of every age": "日付にかかわらずすべてのマーカーを表示",
+  "Maximum event age: {days}d; undated markers are kept": "イベントの最大経過日数：{days}日。日付のないマーカーは保持",
+  "event age filter|All": "すべて",
+  "Event age": "経過日数",
+  "Event age: {days}d · undated kept": "経過日数：{days}日以内 · 日付なしは保持"
 }
@@ -3241,5 +3241,12 @@
  "Open {name} on Acartia": "Abrir {name} no Acartia",
  "iNaturalist": "iNaturalist",
  "iNaturalist contributors · licences per record": "Colaboradores do iNaturalist · licenças por registro",
-  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "Colaboradores do iNaturalist · Acartia {count} (mar de Salish) · licenças por registro"
+  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "Colaboradores do iNaturalist · Acartia {count} (mar de Salish) · licenças por registro",
+  "{days}d": "{days}d",
+  "All markers": "Todos os marcadores",
+  "Show markers of every age": "Mostrar marcadores de qualquer idade",
+  "Maximum event age: {days}d; undated markers are kept": "Idade máxima do evento: {days} dias; marcadores sem data mantidos",
+  "event age filter|All": "Todos",
+  "Event age": "Idade do evento",
+  "Event age: {days}d · undated kept": "Idade do evento: {days} dias · sem data mantidos"
 }
@@ -3316,5 +3316,12 @@
  "Open {name} on Acartia": "Открыть {name} в Acartia",
  "iNaturalist": "iNaturalist",
  "iNaturalist contributors · licences per record": "Участники iNaturalist · лицензия у каждой записи",
-  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "Участники iNaturalist · Acartia {count} (море Сэлиш) · лицензия у каждой записи"
+  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "Участники iNaturalist · Acartia {count} (море Сэлиш) · лицензия у каждой записи",
+  "{days}d": "{days}д",
+  "All markers": "Все метки",
+  "Show markers of every age": "Показать метки любого возраста",
+  "Maximum event age: {days}d; undated markers are kept": "Максимальный возраст события: {days} дн.; метки без даты сохранены",
+  "event age filter|All": "Все",
+  "Event age": "Возраст события",
+  "Event age: {days}d · undated kept": "Возраст события: {days} дн. · метки без даты сохранены"
 }
@@ -3316,5 +3316,12 @@
  "Open {name} on Acartia": "Відкрити {name} в Acartia",
  "iNaturalist": "iNaturalist",
  "iNaturalist contributors · licences per record": "Учасники iNaturalist · ліцензія в кожного запису",
-  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "Учасники iNaturalist · Acartia {count} (море Селіш) · ліцензія в кожного запису"
+  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "Учасники iNaturalist · Acartia {count} (море Селіш) · ліцензія в кожного запису",
+  "{days}d": "{days}д",
+  "All markers": "Усі позначки",
+  "Show markers of every age": "Показати позначки будь-якого віку",
+  "Maximum event age: {days}d; undated markers are kept": "Максимальний вік події: {days} дн.; позначки без дати збережено",
+  "event age filter|All": "Усі",
+  "Event age": "Вік події",
+  "Event age: {days}d · undated kept": "Вік події: {days} дн. · позначки без дати збережено"
 }
@@ -3091,5 +3091,12 @@
  "Open {name} on Acartia": "在 Acartia 上打开 {name}",
  "iNaturalist": "iNaturalist",
  "iNaturalist contributors · licences per record": "iNaturalist 贡献者 · 各记录单独授权",
-  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "iNaturalist 贡献者 · Acartia {count}（萨利希海） · 各记录单独授权"
+  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "iNaturalist 贡献者 · Acartia {count}（萨利希海） · 各记录单独授权",
+  "{days}d": "{days}天",
+  "All markers": "所有标记",
+  "Show markers of every age": "显示所有时间的标记",
+  "Maximum event age: {days}d; undated markers are kept": "事件最长保留时间：{days}天；保留无日期标记",
+  "event age filter|All": "全部",
+  "Event age": "事件时间",
+  "Event age: {days}d · undated kept": "事件时间：{days}天内 · 保留无日期标记"
 }
@@ -3091,5 +3091,12 @@
  "Open {name} on Acartia": "在 Acartia 上打開 {name}",
  "iNaturalist": "iNaturalist",
  "iNaturalist contributors · licences per record": "iNaturalist 貢獻者 · 各紀錄個別授權",
-  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "iNaturalist 貢獻者 · Acartia {count}（薩利希海） · 各紀錄個別授權"
+  "iNaturalist contributors · Acartia {count} (Salish Sea) · licences per record": "iNaturalist 貢獻者 · Acartia {count}（薩利希海） · 各紀錄個別授權",
+  "{days}d": "{days}天",
+  "All markers": "所有標記",
+  "Show markers of every age": "顯示所有時間的標記",
+  "Maximum event age: {days}d; undated markers are kept": "事件最長保留時間：{days}天；保留無日期標記",
+  "event age filter|All": "全部",
+  "Event age": "事件時間",
+  "Event age: {days}d · undated kept": "事件時間：{days}天內 · 保留無日期標記"
 }
@@ -1,3 +1,5 @@
+import { foldPlaceText } from './data/placeNames.js';
+
 /** Photon/OpenStreetMap place-search adapter. */
 const PHOTON_ENDPOINT = 'https://photon.komoot.io/api/';

@@ -233,19 +235,15 @@ export function photonSearchUrl(
 }

 /**
- * Place name reduced to comparable form: unaccented, lowercased, punctuation
- * collapsed to single spaces. "Huế" and "Hue" have to compare equal, because a
- * user typing either means the same city.
+ * Place name reduced to comparable form: lowercased, Latin accents removed,
+ * other scripts preserved, and punctuation collapsed to single spaces. "Huế"
+ * and "Hue" have to compare equal, because a user typing either means the same
+ * city.
 * @param {string} text
 * @returns {string}
 */
 export function normalizeToponym(text) {
-  return String(text ?? '')
-    .normalize('NFD')
-    .replace(/[\u0300-\u036f]/g, '')
-    .toLowerCase()
-    .replace(/[^a-z0-9]+/g, ' ')
-    .trim();
+  return foldPlaceText(text);
 }

 /**
@@ -35,6 +35,12 @@ import {
 import { geocodeNavigationMode } from './locations.js';

 const ROOT = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..');
+const MOSCOW_RESPONSES = JSON.parse(
+  fs.readFileSync(
+    path.join(ROOT, 'src/data/fixtures/photon-moscow-search.json'),
+    'utf8',
+  ),
+);

 /** Photon's real answer for "Hanoi", trimmed to the fields we consume. */
 const HANOI = {
@@ -249,6 +255,58 @@ test('a biased near-miss is refused, and the unbiased answer is taken instead',
  assert.equal(fetchImpl.urls.length, 2, 'the refused bias costs exactly one extra request');
 });

+test('a non-Latin exact match keeps the nearby namesake', async () => {
+  const fetchImpl = photonPair(
+    MOSCOW_RESPONSES.biased.features,
+    MOSCOW_RESPONSES.unbiased.features,
+  );
+
+  const result = await geocodeKeyless('Москва', {
+    bias: '38.90,71.80|39.00,71.90',
+    fetchImpl,
+  });
+
+  assert.equal(result.label, 'Москва, Тоҷикистон');
+  assert.equal(fetchImpl.urls.length, 1);
+});
+
+test('toponym folding preserves non-Latin scripts', () => {
+  const cases = [
+    ['Huế', 'hue'],
+    ['Москва', 'москва'],
+    ['Αθήνα', 'αθήνα'],
+    ['القاهرة', 'القاهرة'],
+    ['東京', '東京'],
+    ['São 東京', 'sao 東京'],
+    ['Straße', 'strasse'],
+    ['Tromsø', 'tromso'],
+    ['Łódź', 'lodz'],
+    ['The Hague', 'the hague'],
+  ];
+
+  for (const [input, expected] of cases) {
+    assert.equal(normalizeToponym(input), expected, input);
+  }
+});
+
+test('a leading "the" is part of the name a nearby match must equal', async () => {
+  // "The Hague" over upstate New York means the Dutch city, not Hague, NY.
+  const hagueNy = {
+    geometry: { type: 'Point', coordinates: [-73.5004, 43.6967] },
+    properties: { osm_key: 'place', osm_value: 'town', type: 'city', name: 'Hague', country: 'United States' },
+  };
+  const theHague = {
+    geometry: { type: 'Point', coordinates: [4.3113, 52.0799] },
+    properties: { osm_key: 'place', osm_value: 'city', type: 'city', name: 'The Hague', country: 'Nederland' },
+  };
+  const fetchImpl = photonPair([hagueNy], [theHague]);
+
+  const result = await geocodeKeyless('The Hague', { bias: '43.65,-73.55|43.75,-73.45', fetchImpl });
+
+  assert.equal(Math.round(result.lat), 52, `got ${result.label}`);
+  assert.equal(fetchImpl.urls.length, 2);
+});
+
 test('a biased match that leads with the name is taken without a second request', async () => {
  // The other half of the rule, and the reason bias exists at all: "Sixth
  // Street" over Austin must stay Austin's.
@@ -67,6 +67,7 @@ export function createCyclonesLayer({
  feed,
  hitTestOverlay = hitTestWorldOverlay,
  overlayHost,
+  context = null,
  cesium = Cesium,
  createRendering = createCycloneRendering,
  matchMedia = globalThis.matchMedia?.bind(globalThis),
@@ -82,6 +83,7 @@ export function createCyclonesLayer({
    selectedId = null,
    selectionIntent = 'auto',
    navigationGeneration = 0,
+    selectedContextStormId = null,
    clickHandler = null,
    removeClickCapture = null;
  let enabled = false,
@@ -92,6 +94,62 @@ export function createCyclonesLayer({
  const notify = () => listener?.();
  const selected = () =>
    snapshot?.storms.find((storm) => storm.id === selectedId) || null;
+  function clearSelectedContext({ evicted = false } = {}) {
+    if (selectedContextStormId) {
+      if (!evicted)
+        context.clearSelectedEntityContextForLayer('weather-cyclones');
+      context.removeEntityContextsForLayer('weather-cyclones');
+    }
+    selectedContextStormId = null;
+  }
+
+  // Callers publish only while selectedId names a storm in the snapshot.
+  function publishSelectedContext({ announce = false } = {}) {
+    const storm = selected();
+    if (!context) return;
+    const entity = {};
+    const contextId = `cyclone:${storm.id}`;
+    context.registerEntityContext(entity, {
+      id: contextId,
+      layerId: 'weather-cyclones',
+      layerName: 'Cyclone advisories',
+      source: 'NOAA NHC / CPHC',
+      label: storm.name,
+      latitude: storm.position.latitude,
+      longitude: storm.position.longitude,
+      // At most 12 properties reach the voice summary; keep the list short.
+      properties: {
+        classification: storm.classification,
+        classificationName: Object.hasOwn(
+          CLASSIFICATION_NAMES,
+          storm.classification,
+        )
+          ? CLASSIFICATION_NAMES[storm.classification]
+          : undefined,
+        basin: storm.basin,
+        advisoryNumber: storm.advisoryNumber,
+        issuedAt: storm.issuedAt,
+        positionAt: storm.positionAt,
+        windKt: storm.windKt,
+        pressureHpa: storm.pressureHpa,
+        // Flat scalars: the voice context summary drops nested objects.
+        movementDirectionDegrees: storm.movement?.directionDegrees,
+        movementSpeedKt: storm.movement?.speedKt,
+        advisoryUrl: storm.advisoryUrl,
+        // Only while the proxy serves its cache because NHC is unreachable.
+        staleCacheFetchedAt:
+          snapshot.stale && Number.isFinite(snapshot.fetchedAt)
+            ? new Date(snapshot.fetchedAt).toISOString()
+            : undefined,
+      },
+    });
+    selectedContextStormId = storm.id;
+    if (announce) context.selectEntityContext(entity);
+    context.removeEntityContextsForLayer('weather-cyclones', {
+      retainIds: new Set([contextId]),
+    });
+  }
+
  function select(id) {
    if (selectedId !== id) ++navigationGeneration;
    selectedId = id;
@@ -236,6 +294,7 @@ export function createCyclonesLayer({
      selectedId = null;
      selectionIntent = 'auto';
      ++navigationGeneration;
+      clearSelectedContext();
      rendering?.clear();
    },
    async update(_viewer, { signal } = {}) {
@@ -259,6 +318,7 @@ export function createCyclonesLayer({
          snapshot = next;
          selectedId = null;
          ++navigationGeneration;
+          clearSelectedContext({ evicted: true });
          error = next.reason || ADVISORIES_UNAVAILABLE;
          return true;
        }
@@ -281,6 +341,10 @@ export function createCyclonesLayer({
              : snapshot.storms[0]?.id || null,
          );
        else rendering.setSelection(selectedId);
+        if (selectedContextStormId) {
+          if (selectedId === selectedContextStormId) publishSelectedContext();
+          else clearSelectedContext({ evicted: true });
+        }
        return true;
      } catch (cause) {
        if (controller.signal.aborted || request !== controller) return false;
@@ -290,6 +354,7 @@ export function createCyclonesLayer({
        snapshot = null;
        selectedId = null;
        ++navigationGeneration;
+        clearSelectedContext({ evicted: true });
        return true;
      } finally {
        signal?.removeEventListener('abort', abort);
@@ -305,6 +370,7 @@ export function createCyclonesLayer({
      if (params.clear === true || params.stormId === null) {
        selectionIntent = 'cleared';
        select(null);
+        clearSelectedContext();
        notify();
      } else if (
        typeof params.stormId === 'string' &&
@@ -312,6 +378,7 @@ export function createCyclonesLayer({
      ) {
        selectionIntent = 'user';
        select(params.stormId);
+        publishSelectedContext({ announce: true });
        notify();
      }
      const storm = selected();
@@ -7,6 +7,9 @@ import {
  isPointerFree,
 } from '../../data/inputOwnership.js';
 import { isOwnedByOtherLayer } from '../../data/pickRegistry.js';
+import * as contextStore from '../../data/contextStore.js';
+import { createGevActionRunner } from '../../voice/gevActions.js';
+import * as Cesium from 'cesium';

 const time = '2026-09-16T03:00:00.000Z';
 const storm = (id = 'ep152026') => ({
@@ -338,7 +341,7 @@ test('a click on a storm card or lead-hour label selects that storm without pick
 });
 function harness(
  feed = { getSnapshot: async () => snapshot() },
-  { reducedMotion = false } = {},
+  { reducedMotion = false, context = null } = {},
 ) {
  const applied = [],
    navigation = [],
@@ -368,6 +371,7 @@ function harness(
  };
  const layer = createCyclonesLayer({
    feed,
+    context,
    createRendering: () => rendering,
    matchMedia: () => ({ matches: reducedMotion }),
    openLink: (url) => opened.push(url),
@@ -401,6 +405,256 @@ function harness(
    },
  };
 }
+// Real shared-context store on a stand-in window; the voice runner reads it.
+async function withSharedContext(t, body) {
+  const previousWindow = Object.getOwnPropertyDescriptor(globalThis, 'window');
+  const host = new EventTarget();
+  Object.defineProperty(globalThis, 'window', {
+    configurable: true,
+    value: host,
+  });
+  const layers = [];
+  t.after(() => {
+    try {
+      for (const layer of layers) layer.destroy();
+    } finally {
+      if (previousWindow)
+        Object.defineProperty(globalThis, 'window', previousWindow);
+      else delete globalThis.window;
+    }
+  });
+  const events = [];
+  host.addEventListener('gev:entity-selected', ({ detail }) =>
+    events.push(['selected', detail.id]),
+  );
+  host.addEventListener('gev:entity-selection-cleared', ({ detail }) =>
+    events.push(['cleared', detail.layerId, detail.reason]),
+  );
+  // The voice runner bounds its basemap wait with the window timers.
+  Object.assign(host, { setTimeout, clearTimeout });
+  const position = Cesium.Cartesian3.fromDegrees(-125.8, 15.5, 5_000_000);
+  const runner = createGevActionRunner({
+    viewer: {
+      clock: { onTick: { addEventListener: () => () => {} } },
+      scene: { canvas: { addEventListener() {}, removeEventListener() {} } },
+      camera: {
+        moveEnd: { addEventListener() {} },
+        positionWC: position,
+        positionCartographic: Cesium.Cartographic.fromCartesian(position),
+        heading: 0,
+        pitch: 0,
+      },
+    },
+    styleManager: {},
+    dataManager: {
+      layers: new Map(),
+      isEnabled: (id) => id === 'weather-cyclones',
+      getAll: () => [],
+    },
+  });
+  const selectedProperties = async () => {
+    const result = await runner('get_entity_context', { scope: 'selected' });
+    assert.equal(result.scope, 'selected');
+    return result.selected.properties;
+  };
+  const store = contextStore.getContextStore();
+  const open = (feed) => {
+    const h = harness(feed, { context: contextStore });
+    layers.push(h.layer);
+    return h;
+  };
+  await body({ events, selectedProperties, store, open });
+}
+
+test('shared cyclone context distinguishes switches, deliberate clears and feed eviction', async (t) => {
+  await withSharedContext(
+    t,
+    async ({ events, selectedProperties, store, open }) => {
+      let next = snapshot([
+        { ...storm(), movement: { directionDegrees: 315, speedKt: 12 } },
+        {
+          ...storm('ep162026'),
+          movement: { directionDegrees: 0, speedKt: 10 },
+        },
+      ]);
+      const h = open({ getSnapshot: async () => next });
+      h.layer.enable();
+      await h.layer.update();
+      assert.deepEqual(
+        events,
+        [],
+        'the automatic first-storm row selection must not claim shared context',
+      );
+      assert.equal(store.entities.size, 0);
+
+      h.layer.setParams({ stormId: 'ep152026' });
+      assert.equal(store.entities.get('cyclone:ep152026').label, 'Fifteen-E');
+      let properties = await selectedProperties();
+      assert.equal(properties.classification, 'PTC');
+      assert.equal(properties.classificationName, 'Post-tropical cyclone');
+      assert.equal(properties.advisoryNumber, '10');
+      assert.equal(
+        properties.movementDirectionDegrees,
+        '315',
+        'selected storm movement should survive voice summarization',
+      );
+      assert.equal(properties.movementSpeedKt, '12');
+      assert.equal(
+        properties.advisoryUrl,
+        'https://www.nhc.noaa.gov/text/MIATCMEP5.shtml',
+      );
+      assert.equal(properties.staleCacheFetchedAt, undefined);
+
+      h.layer.setParams({ stormId: 'ep162026' });
+      properties = await selectedProperties();
+      assert.equal(
+        properties.movementDirectionDegrees,
+        '0',
+        'a due-north heading is a value, not a missing one',
+      );
+      assert.equal(properties.movementSpeedKt, '10');
+      assert.deepEqual(events, [
+        ['selected', 'cyclone:ep152026'],
+        ['selected', 'cyclone:ep162026'],
+      ]);
+      assert.deepEqual([...store.entities.keys()], ['cyclone:ep162026']);
+
+      next = snapshot([
+        { ...storm(), movement: { directionDegrees: 315, speedKt: 12 } },
+        { ...storm('ep162026'), movement: { directionDegrees: 0, speedKt: 0 } },
+      ]);
+      await h.layer.update();
+      assert.equal(events.length, 2, 'refresh must not announce selection');
+      properties = await selectedProperties();
+      assert.equal(
+        properties.movementSpeedKt,
+        '0',
+        'stationary is a value, refreshed into the selected record',
+      );
+
+      h.layer.setParams({ clear: true });
+      assert.deepEqual(events.at(-1), [
+        'cleared',
+        'weather-cyclones',
+        'deliberate',
+      ]);
+      assert.equal(store.entities.size, 0);
+
+      h.layer.setParams({ stormId: 'ep162026' });
+      next = snapshot([storm()]);
+      await h.layer.update();
+      assert.deepEqual(
+        events.at(-1),
+        ['cleared', 'weather-cyclones', 'evicted'],
+        'a vanished user-selected storm must clear instead of transferring context to the fallback row',
+      );
+      assert.equal(store.entities.size, 0);
+      assert.equal(store.selectedEntityId, null);
+
+      h.layer.setParams({ stormId: 'ep152026' });
+      h.layer.disable();
+      assert.deepEqual(events.at(-1), [
+        'cleared',
+        'weather-cyclones',
+        'deliberate',
+      ]);
+      assert.equal(store.entities.size, 0);
+    },
+  );
+});
+
+test('shared cyclone context is evicted when the source fails and marks a stale cache', async (t) => {
+  await withSharedContext(
+    t,
+    async ({ events, selectedProperties, store, open }) => {
+      let next = snapshot([{ ...storm(), classification: 'XX' }]);
+      let fail = false;
+      const h = open({
+        getSnapshot: async () => {
+          if (fail) throw new Error('Network unavailable');
+          return next;
+        },
+      });
+      h.layer.enable();
+      await h.layer.update();
+      h.layer.setParams({ stormId: 'ep152026' });
+      let properties = await selectedProperties();
+      assert.equal(properties.classification, 'XX');
+      assert.equal(
+        properties.classificationName,
+        undefined,
+        'an unknown code is not given a guessed meaning',
+      );
+
+      next = { ...snapshot(), stale: true };
+      await h.layer.update();
+      properties = await selectedProperties();
+      assert.equal(properties.staleCacheFetchedAt, time);
+      assert.equal(events.length, 1, 'refresh must not announce selection');
+
+      next = {
+        ...snapshot([]),
+        unavailable: true,
+        reason: 'Cyclone data unavailable',
+      };
+      await h.layer.update();
+      assert.deepEqual(events.at(-1), [
+        'cleared',
+        'weather-cyclones',
+        'evicted',
+      ]);
+      assert.equal(store.entities.size, 0);
+
+      next = snapshot();
+      await h.layer.update();
+      h.layer.setParams({ stormId: 'ep152026' });
+      assert.equal(store.selectedEntityId, 'cyclone:ep152026');
+      fail = true;
+      await h.layer.update();
+      assert.deepEqual(events.at(-1), [
+        'cleared',
+        'weather-cyclones',
+        'evicted',
+      ]);
+      assert.equal(store.entities.size, 0);
+      assert.equal(store.selectedEntityId, null);
+    },
+  );
+});
+
+test('cyclone clears leave another layer selection and its records alone', async (t) => {
+  await withSharedContext(t, async ({ events, store, open }) => {
+    const h = open({ getSnapshot: async () => snapshot() });
+    h.layer.enable();
+    await h.layer.update();
+    h.layer.setParams({ stormId: 'ep152026' });
+    const foreign = {};
+    contextStore.registerEntityContext(foreign, {
+      id: 'flight:abc123',
+      layerId: 'flights',
+      label: 'Foreign',
+    });
+    contextStore.selectEntityContext(foreign);
+    const before = events.length;
+
+    h.layer.setParams({ clear: true });
+    assert.equal(store.selectedEntityId, 'flight:abc123');
+    assert.ok(store.entities.has('flight:abc123'));
+    assert.equal(store.entities.has('cyclone:ep152026'), false);
+    assert.equal(
+      events.length,
+      before,
+      'no clear is reported for a foreign selection',
+    );
+
+    // A cyclone clear does not report a dangling foreign selection as evicted.
+    store.entities.delete('flight:abc123');
+    h.layer.disable();
+    assert.equal(store.selectedEntityId, 'flight:abc123');
+    assert.equal(events.length, before);
+  });
+});
+
 test('refresh preserves selection intent, including explicit clears and missing storms', async () => {
  let next = snapshot([storm(), storm('ep162026')]);
  const h = harness({ getSnapshot: async () => next });
@@ -0,0 +1,163 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import * as Cesium from 'cesium';
+import { createFlightState } from './state.js';
+import { createRendering } from './rendering.js';
+import {
+  FLEET_DR_INTERVAL_MS,
+  HIDDEN_CONTACT_DR_INTERVAL_MS,
+  HIDDEN_CONTACT_DR_TICKS,
+  hiddenContactDrPhase,
+} from './policy.js';
+
+// Contacts hidden behind the horizon re-reckon on one fleet tick per rotation
+// instead of every tick. Their positions still feed hidden-inclusive proximity
+// queries, so the rotation must reach every contact about once a second, and
+// it must spread them across ticks so no single tick carries the whole fleet.
+
+const icao = (n) => n.toString(16).padStart(6, '0');
+
+test('the rotation revisits each hidden contact about once a second', () => {
+  const periodMs = HIDDEN_CONTACT_DR_TICKS * FLEET_DR_INTERVAL_MS;
+  assert.ok(HIDDEN_CONTACT_DR_TICKS > 1);
+  assert.ok(
+    Math.abs(periodMs - HIDDEN_CONTACT_DR_INTERVAL_MS) <= FLEET_DR_INTERVAL_MS,
+  );
+});
+
+test('a contact keeps the same slot, inside the rotation', () => {
+  for (let n = 0; n < 500; n++) {
+    const phase = hiddenContactDrPhase(icao(n * 7919));
+    assert.ok(Number.isInteger(phase));
+    assert.ok(phase >= 0 && phase < HIDDEN_CONTACT_DR_TICKS);
+    assert.equal(hiddenContactDrPhase(icao(n * 7919)), phase);
+  }
+});
+
+test('a worldwide fleet is spread evenly enough that no tick carries a burst', () => {
+  const fleet = 13000;
+  const perSlot = new Array(HIDDEN_CONTACT_DR_TICKS).fill(0);
+  // Real ICAO24 addresses cluster by national block; sample several blocks.
+  for (let n = 0; n < fleet; n++)
+    perSlot[hiddenContactDrPhase(icao(0x0a0000 + n * 53))]++;
+  const fair = fleet / HIDDEN_CONTACT_DR_TICKS;
+  for (const count of perSlot) assert.ok(count < fair * 1.5, `${count} > 1.5×`);
+});
+
+/** Real fleet tick and horizon culling, with motion and presentation injected. */
+function fleetFixture() {
+  let now = 1000;
+  let reckonings = 0;
+  const services = {
+    groundSnap: { createGroundSnap: () => ({ clear() {} }) },
+    militaryRegistry: { isMilitaryIcao: () => false },
+    aircraftPresentation: { isTr3b: () => false },
+    camera: {},
+    focus: {
+      focusNowMs: () => now,
+      getFocusTarget: () => null,
+      nearFarScalarValueAtDistance: () => 1,
+      advanceProjectedSpriteFocus: () => ({ factor: 1 }),
+    },
+    recession: {
+      applyAircraftBillboardTreatment: () => ({
+        factors: { scale: 1 },
+        alpha: 1,
+      }),
+    },
+  };
+  const flightState = createFlightState({ services });
+  const camera = {
+    positionWC: Cesium.Cartesian3.fromDegrees(0, 0, 100),
+    positionCartographic: { height: 100 },
+    heading: 0,
+    pitch: 0,
+    roll: 0,
+    frustum: {
+      computeCullingVolume: () => ({
+        computeVisibility: () => Cesium.Intersect.INSIDE,
+      }),
+    },
+  };
+  const id = 'abc123';
+  // 111 km away at ground level is beyond a 100 m camera's horizon, but
+  // inside the model keep radius. No WebGL scene is needed for the culler.
+  const billboard = {
+    show: false,
+    position: Cesium.Cartesian3.fromDegrees(1, 0, 0),
+  };
+  flightState._viewer = { camera, scene: {} };
+  flightState._billboardCollection = { show: true };
+  flightState._billboards.set(id, billboard);
+  flightState.records.data.set(id, {});
+  flightState._models3dEnabled = false;
+  // Far cockpit contacts avoid glyph rasterization, keeping the fixture DOM-free.
+  flightState._cockpitContactMode = true;
+  const parts = {
+    tracking: { _refreshCockpitNearContacts() {} },
+    motion: {
+      _deadReckon() {
+        reckonings++;
+        return billboard.position;
+      },
+      _floorGroundedDisplayPosition(id, info, position) {
+        return position;
+      },
+    },
+  };
+  const rendering = createRendering({ flightState, services, parts });
+  return {
+    flightState,
+    camera,
+    billboard,
+    id,
+    reckonings: () => reckonings,
+    tick() {
+      now += FLEET_DR_INTERVAL_MS;
+      rendering._fleetTick();
+    },
+    offTurn() {
+      flightState._fleetTickSeq =
+        (hiddenContactDrPhase(id) + 1) % HIDDEN_CONTACT_DR_TICKS;
+    },
+  };
+}
+
+test('the fleet tick dead-reckons a hidden contact once per complete rotation', () => {
+  const f = fleetFixture();
+  for (let i = 0; i < HIDDEN_CONTACT_DR_TICKS; i++) f.tick();
+  assert.equal(f.reckonings(), 1);
+  assert.equal(f.billboard.show, false);
+});
+
+test('a camera reveal bypasses the hidden rotation on the same fleet tick', () => {
+  const f = fleetFixture();
+  f.offTurn();
+  f.tick();
+  assert.equal(f.reckonings(), 0);
+  f.camera.positionWC = Cesium.Cartesian3.fromDegrees(1, 0, 100);
+  f.offTurn();
+  f.tick();
+  assert.equal(f.reckonings(), 1);
+  assert.equal(f.billboard.show, true);
+});
+
+test('a hidden contact with a retained fleet model is never rotation-skipped', () => {
+  const f = fleetFixture();
+  f.flightState._models3dEnabled = true;
+  const model = { ready: true, show: true };
+  f.flightState._models.set(f.id, model);
+  f.offTurn();
+  f.tick();
+  assert.equal(f.reckonings(), 1);
+  assert.equal(
+    f.flightState._models.get(f.id),
+    model,
+    'model remains in keep range',
+  );
+  assert.equal(
+    model.show,
+    false,
+    'the full pass hides its model beyond the horizon',
+  );
+});
@@ -198,6 +198,37 @@ export const FLEET_DR_INTERVAL_MS = 80;

 export const ROTATION_REFRESH_MS = 1000;

+/**
+ * @constant {number} Dead-reckoning cadence (ms) for contacts hidden behind the
+ * horizon. The worldwide feed carries ~13k contacts and a zoomed-in view shows
+ * well under 1% of them; the rest still need positions for hidden-inclusive
+ * proximity queries, but ~1 s old (≈250 m for an airliner) is well inside the
+ * 30 s poll's own uncertainty. Each hidden contact is re-reckoned on one tick in
+ * every HIDDEN_CONTACT_DR_TICKS, staggered by id so no tick carries them all.
+ */
+
+export const HIDDEN_CONTACT_DR_INTERVAL_MS = 1000;
+
+export const HIDDEN_CONTACT_DR_TICKS = Math.max(
+  1,
+  Math.round(HIDDEN_CONTACT_DR_INTERVAL_MS / FLEET_DR_INTERVAL_MS),
+);
+
+/**
+ * Stable slot in [0, HIDDEN_CONTACT_DR_TICKS) for a contact id, so each hidden
+ * contact re-reckons on the same tick of every rotation.
+ * @param {string} id Contact id (ICAO24).
+ * @returns {number}
+ */
+
+export function hiddenContactDrPhase(id) {
+  const text = String(id);
+  let hash = 0;
+  for (let i = 0; i < text.length; i++)
+    hash = (hash * 31 + text.charCodeAt(i)) >>> 0;
+  return hash % HIDDEN_CONTACT_DR_TICKS;
+}
+
 /** Max course slew (deg/s) — well above real turns (≤4°/s), hides fix-boundary
 *  steps. Scaled down toward COURSE_MIN_DPS at low speed (courseSlewCapDps). */

@@ -36,6 +36,8 @@ import {
  COURSE_SLEW_DT_MAX_SEC,
  ROTATION_REFRESH_MS,
  COURSE_MAX_DPS,
+  HIDDEN_CONTACT_DR_TICKS,
+  hiddenContactDrPhase,
 } from './policy.js';
 import { AIRCRAFT_ENVIRONMENT_MAP_OPTIONS } from '../../data/aircraftModelLighting.js';

@@ -839,6 +841,12 @@ export function createRendering({
    }
  }

+  /** The contact's hidden-rotation slot, cached on its billboard. */
+  function _hiddenDrPhase(bb, icao24) {
+    bb._gevHiddenDrPhase ??= hiddenContactDrPhase(icao24);
+    return bb._gevHiddenDrPhase;
+  }
+
  function _fleetTick() {
    if (
      !flightState._viewer ||
@@ -965,9 +973,25 @@ export function createRendering({
      for (const icao of toRelease) _releaseModel(icao);
    }

+    const hiddenDrPhase = flightState._fleetTickSeq++ % HIDDEN_CONTACT_DR_TICKS;
+
    for (const [icao24, bb] of flightState._billboards) {
      if (icao24 === flightState._trackedIcao) continue; // tracked entity owns its own motion

+      // A contact still behind the horizon at its last position would only be
+      // re-reckoned to be hidden again, so off its turn it keeps that position
+      // (see HIDDEN_CONTACT_DR_TICKS). Anything the stale position puts in view,
+      // and any contact with a fleet model, takes the full pass below at once.
+      if (
+        !bb.show &&
+        _hiddenDrPhase(bb, icao24) !== hiddenDrPhase &&
+        !flightState._models.has(icao24) &&
+        !occluder.isPointVisible(
+          flightState._cullPositions.get(icao24) || bb.position,
+        )
+      )
+        continue;
+
      const info = flightState.records.data.get(icao24);

      const dr = parts.motion._deadReckon(
@@ -204,6 +204,10 @@ export function createFlightState({ source, services }) {

  flightState._lastFleetTickMs = 0;

+  /** @type {number} Fleet ticks run; selects which hidden contacts re-reckon */
+
+  flightState._fleetTickSeq = 0;
+
  /** @type {string} Camera pose signature at the last rotation pass */

  flightState._lastCamPoseSig = '';
@@ -16,7 +16,15 @@ import {
 } from '../../i18n/index.js';
 import { createHorizonCull } from '../streetLevel/view.js';
 import { readGhostMapsKml } from './kml.js';
-import { fieldLabel, parseDescriptionFields, wrapCardText } from './records.js';
+import {
+  fieldLabel,
+  GHOSTMAPS_AGE_OPTIONS,
+  GHOSTMAPS_DEFAULT_AGE_DAYS,
+  ghostMapsEventDate,
+  isGhostMapsEventExpired,
+  parseDescriptionFields,
+  wrapCardText,
+} from './records.js';
 export * from './catalog.js';
 export * from './records.js';
 export { readGhostMapsKml } from './kml.js';
@@ -26,6 +34,7 @@ export const GHOSTMAPS_LAYER_ID = 's2-ghostmaps';
 export const GHOSTMAPS_OVERLAY_SOURCE_ID = 's2-ghostmaps';
 const PICK_PREFIX = 'ghostmaps:';
 const STORAGE_KEY = 'gev.ghostmaps.products';
+const AGE_STORAGE_KEY = 'gev.ghostmaps.ageDays';
 const ACCENT = '#c8ff00';
 const MAX_ICON_BYTES = 512 * 1024;
 const CARD_HOST_OPTIONS = Object.freeze({
@@ -82,6 +91,19 @@ function writeStoredSelection(storage, selected) {
  }
 }

+function readStoredAge(storage) {
+  try {
+    const raw = storage?.getItem(AGE_STORAGE_KEY);
+    if (raw !== null && raw !== undefined) {
+      const value = JSON.parse(raw);
+      if (GHOSTMAPS_AGE_OPTIONS.includes(value)) return value;
+    }
+  } catch {
+    /* unavailable or invalid storage uses the default */
+  }
+  return GHOSTMAPS_DEFAULT_AGE_DAYS;
+}
+
 /** A round marker for placemarks whose icon is missing or remote. */
 const markerCache = new Map();
 function markerImage(color) {
@@ -137,6 +159,7 @@ export function createGhostMapsLayer({
  pointer = null,
  openExternal = null,
  storage = defaultStorage(),
+  now = () => Date.now(),
 } = {}) {
  if (typeof source?.getCatalog !== 'function')
    throw new TypeError('GhostMaps layer requires a catalog source');
@@ -154,7 +177,9 @@ export function createGhostMapsLayer({
  let _selectedLink = null;
  let _lifetime = new AbortController();
  let _selection = readStoredSelection(storage);
-  /** productId → {version, dataSource, urls, count, features} */
+  let _ageDays = readStoredAge(storage);
+  let _expiryTimer = null;
+  /** productId → {version, dataSource, urls, features: Map<index, record>, pins} */
  const _loaded = new Map();
  /** productId → in-flight version */
  const _loading = new Map();
@@ -183,17 +208,40 @@ export function createGhostMapsLayer({
    return (_catalog?.products || []).filter(wanted).map(({ id }) => id);
  }

-  function unload(id) {
+  function unload(id, keepSelection = false) {
    const item = _loaded.get(id);
    if (!item) return;
    _loaded.delete(id);
    _viewer?.dataSources?.remove(item.dataSource, true);
    item.urls.forEach((url) => URL.revokeObjectURL(url));
-    if (_selectedKey?.startsWith(`${id}:`)) clearSelection();
+    if (!keepSelection && _selectedKey?.startsWith(`${id}:`)) clearSelection();
+  }
+
+  // Remove expired entities, rather than hiding them: horizon culling must
+  // never make an old pin visible again. Map keys keep surviving picks stable.
+  function expireEvents() {
+    const at = now();
+    let changed = false;
+    for (const [productId, item] of _loaded) {
+      for (const [index, feature] of item.features) {
+        if (!isGhostMapsEventExpired(feature.dateMs, at, _ageDays)) continue;
+        for (const entity of feature.entities)
+          item.dataSource.entities.remove(entity);
+        item.features.delete(index);
+        if (_selectedKey === `${productId}:${index}`) clearSelection();
+        changed = true;
+      }
+      item.pins = item.pins.filter((pin) => item.features.has(pin.index));
+    }
+    if (changed) {
+      notifyRow();
+      render();
+    }
  }

  /** Build one product's data source off-scene, then swap it in. */
  async function load(product, signal) {
+    const ageDays = _ageDays;
    const bytes = await source.getFile(product.id, product.version, { signal });
    signal.throwIfAborted();
    const entries = await readZipEntries(bytes);
@@ -223,12 +271,16 @@ export function createGhostMapsLayer({
      const dataSource = new Cesium.CustomDataSource(
        `${GHOSTMAPS_LAYER_ID}:${product.id}`,
      );
-      const features = [];
+      const features = new Map();
      const pins = [];
+      const at = now();
      dataSource.entities.suspendEvents();
      parsed.features.forEach((feature, index) => {
+        const dateMs = ghostMapsEventDate(feature.description);
+        if (isGhostMapsEventExpired(dateMs, at, ageDays)) return;
        const key = `${product.id}:${index}`;
        const { style } = feature;
+        const entities = [];
        feature.geometries.forEach((geometry, part) => {
          const id = `${PICK_PREFIX}${key}:${part}`;
          if (geometry.type === 'point') {
@@ -255,7 +307,9 @@ export function createGhostMapsLayer({
                disableDepthTestDistance: Number.POSITIVE_INFINITY,
              },
            });
+            entities.push(entity);
            pins.push({
+              index,
              position,
              get show() {
                return entity.show;
@@ -265,61 +319,76 @@ export function createGhostMapsLayer({
              },
            });
          } else if (geometry.type === 'line') {
-            dataSource.entities.add({
-              id,
-              polyline: {
-                positions: Cesium.Cartesian3.fromDegreesArray(
-                  geometry.positions.flat(),
-                ),
-                width: Math.min(8, Math.max(1.5, style.lineWidth ?? 2)),
-                material: cesiumColor(style.lineColor, color),
-                clampToGround: true,
-              },
-            });
-          } else {
-            const ring = (points) =>
-              Cesium.Cartesian3.fromDegreesArray(points.flat());
-            dataSource.entities.add({
-              id,
-              polygon: {
-                hierarchy: new Cesium.PolygonHierarchy(
-                  ring(geometry.outer),
-                  geometry.holes.map(
-                    (hole) => new Cesium.PolygonHierarchy(ring(hole)),
-                  ),
-                ),
-                material:
-                  style.fill === false
-                    ? Cesium.Color.TRANSPARENT
-                    : cesiumColor(
-                        style.polyColor,
-                        color,
-                        style.polyColor ? undefined : 0.25,
-                      ),
-                classificationType: Cesium.ClassificationType.BOTH,
-              },
-            });
-            if (style.outline !== false)
+            entities.push(
              dataSource.entities.add({
-                id: `${id}:outline`,
+                id,
                polyline: {
-                  positions: ring([...geometry.outer, geometry.outer[0]]),
-                  width: Math.min(6, Math.max(1.5, style.lineWidth ?? 2)),
+                  positions: Cesium.Cartesian3.fromDegreesArray(
+                    geometry.positions.flat(),
+                  ),
+                  width: Math.min(8, Math.max(1.5, style.lineWidth ?? 2)),
                  material: cesiumColor(style.lineColor, color),
                  clampToGround: true,
                },
-              });
+              }),
+            );
+          } else {
+            const ring = (points) =>
+              Cesium.Cartesian3.fromDegreesArray(points.flat());
+            entities.push(
+              dataSource.entities.add({
+                id,
+                polygon: {
+                  hierarchy: new Cesium.PolygonHierarchy(
+                    ring(geometry.outer),
+                    geometry.holes.map(
+                      (hole) => new Cesium.PolygonHierarchy(ring(hole)),
+                    ),
+                  ),
+                  material:
+                    style.fill === false
+                      ? Cesium.Color.TRANSPARENT
+                      : cesiumColor(
+                          style.polyColor,
+                          color,
+                          style.polyColor ? undefined : 0.25,
+                        ),
+                  classificationType: Cesium.ClassificationType.BOTH,
+                },
+              }),
+            );
+            if (style.outline !== false)
+              entities.push(
+                dataSource.entities.add({
+                  id: `${id}:outline`,
+                  polyline: {
+                    positions: ring([...geometry.outer, geometry.outer[0]]),
+                    width: Math.min(6, Math.max(1.5, style.lineWidth ?? 2)),
+                    material: cesiumColor(style.lineColor, color),
+                    clampToGround: true,
+                  },
+                }),
+              );
          }
        });
-        features.push({
+        features.set(index, {
          name: feature.name,
          folder: feature.folder,
          description: feature.description,
+          dateMs,
+          entities,
          anchor: anchorOf(feature.geometries[0]),
        });
      });
      dataSource.entities.resumeEvents();
-      return { version: product.version, dataSource, urls, features, pins };
+      return {
+        version: product.version,
+        ageDays,
+        dataSource,
+        urls,
+        features,
+        pins,
+      };
    } catch (error) {
      urls.forEach((url) => URL.revokeObjectURL(url));
      throw error;
@@ -330,6 +399,7 @@ export function createGhostMapsLayer({
  function sync() {
    const run = _queue.then(async () => {
      if (!_enabled || !_viewer || !_catalog) return;
+      expireEvents();
      const signal = _lifetime.signal;
      const products = new Map(_catalog.products.map((p) => [p.id, p]));
      for (const id of [..._loaded.keys()]) {
@@ -338,21 +408,33 @@ export function createGhostMapsLayer({
      }
      for (const product of _catalog.products) {
        if (!wanted(product) || signal.aborted) continue;
-        if (_loaded.get(product.id)?.version === product.version) continue;
+        const loaded = _loaded.get(product.id);
+        if (loaded?.version === product.version && loaded.ageDays === _ageDays)
+          continue;
        _loading.set(product.id, product.version);
        _failed.delete(product.id);
        notifyRow();
        try {
          const next = await load(product, signal);
-          if (signal.aborted || !_enabled) {
+          if (signal.aborted || !_enabled || next.ageDays !== _ageDays) {
            next.urls.forEach((url) => URL.revokeObjectURL(url));
            return;
          }
          // Cull before the first frame so far-side pins never flash.
          _horizon.update(next.pins);
          await _viewer.dataSources.add(next.dataSource);
-          // The new edition is on the globe before the old one leaves.
-          unload(product.id);
+          // The new edition is on the globe before the old one leaves. The card
+          // stays only if its index still holds the same report: the server
+          // may answer a pinned version with newer bytes.
+          const index = Number(_selectedKey?.split(':')[1]);
+          const before = loaded?.features.get(index);
+          const after = next.features.get(index);
+          unload(
+            product.id,
+            Boolean(before && after) &&
+              before.name === after.name &&
+              before.description === after.description,
+          );
          _loaded.set(product.id, next);
        } catch (error) {
          if (signal.aborted) return;
@@ -391,12 +473,38 @@ export function createGhostMapsLayer({
    void sync();
  }

+  function setAgeDays(ageDays) {
+    if (!GHOSTMAPS_AGE_OPTIONS.includes(ageDays) || ageDays === _ageDays)
+      return;
+    _ageDays = ageDays;
+    try {
+      storage?.setItem(AGE_STORAGE_KEY, JSON.stringify(ageDays));
+    } catch {
+      /* private window or blocked storage: keep the session choice */
+    }
+    expireEvents();
+    // Narrowing only removes markers. A product loaded with a narrower window
+    // keeps its old ageDays, so sync() restores omitted placemarks from the
+    // cached KMZ even though its upstream version has not changed.
+    for (const [id, item] of _loaded)
+      if (
+        item.ageDays === null ||
+        (ageDays !== null && item.ageDays >= ageDays)
+      ) {
+        item.ageDays = ageDays;
+        // A failed wider reload no longer matters; a stale edition retries.
+        _failed.delete(id);
+      }
+    notifyRow();
+    return sync();
+  }
+
  // ---- selection card ----------------------------------------------------
  function featureFor(key) {
    const [productId, index] = key.split(':');
    return {
      product: _catalog?.products.find((p) => p.id === productId) || null,
-      feature: _loaded.get(productId)?.features[Number(index)] || null,
+      feature: _loaded.get(productId)?.features.get(Number(index)) || null,
    };
  }

@@ -490,7 +598,7 @@ export function createGhostMapsLayer({
    if (typeof pickId !== 'string' || !pickId.startsWith(PICK_PREFIX))
      return null;
    const [productId, index] = pickId.slice(PICK_PREFIX.length).split(':');
-    return _loaded.get(productId)?.features[Number(index)]
+    return _loaded.get(productId)?.features.has(Number(index))
      ? `${productId}:${index}`
      : null;
  }
@@ -542,7 +650,7 @@ export function createGhostMapsLayer({

  function featureCount() {
    let count = 0;
-    for (const item of _loaded.values()) count += item.features.length;
+    for (const item of _loaded.values()) count += item.features.size;
    return count;
  }

@@ -563,6 +671,8 @@ export function createGhostMapsLayer({
    enable() {
      _enabled = true;
      _lifetime = new AbortController();
+      if (_expiryTimer === null)
+        _expiryTimer = setInterval(expireEvents, 60_000);
      for (const item of _loaded.values()) item.dataSource.show = true;
      installClickHandler();
      if (!_unsubscribe && typeof source.subscribe === 'function')
@@ -580,6 +690,8 @@ export function createGhostMapsLayer({

    disable() {
      _enabled = false;
+      clearInterval(_expiryTimer);
+      _expiryTimer = null;
      _lifetime.abort();
      _unsubscribe?.();
      _unsubscribe = null;
@@ -593,6 +705,7 @@ export function createGhostMapsLayer({

    async update(_viewerArg, { signal } = {}) {
      if (!_enabled || signal?.aborted) return false;
+      expireEvents();
      try {
        const catalog = await source.getCatalog({ signal });
        if (!_enabled) return false;
@@ -637,6 +750,25 @@ export function createGhostMapsLayer({
            })
        : t('Connecting to the S2 GhostMaps repository…');
      return {
+        segmented: {
+          id: 'age',
+          label: t('Event age'),
+          options: GHOSTMAPS_AGE_OPTIONS.map((days) => ({
+            id: `age-${days ?? 'all'}`,
+            label:
+              days === null
+                ? t('All', { context: 'event age filter' })
+                : t('{days}d', { days: formatNumber(days) }),
+            title:
+              days === null
+                ? t('Show markers of every age')
+                : t('Maximum event age: {days}d; undated markers are kept', {
+                    days: formatNumber(days),
+                  }),
+            active: days === _ageDays,
+            onClick: () => setAgeDays(days),
+          })),
+        },
        chips: products.map((product) => {
          const loaded = _loaded.get(product.id);
          const failed = _failed.get(product.id);
@@ -651,11 +783,11 @@ export function createGhostMapsLayer({
              product.fileTitle,
              loaded
                ? tn(
-                    loaded.features.length,
+                    loaded.features.size,
                    '{count} placemark',
                    '{count} placemarks',
                    {
-                      count: formatNumber(loaded.features.length),
+                      count: formatNumber(loaded.features.size),
                    },
                  )
                : null,
@@ -667,7 +799,7 @@ export function createGhostMapsLayer({
          };
        }),
        legend: [],
-        info,
+        info: `${_ageDays === null ? t('All markers') : t('Event age: {days}d · undated kept', { days: formatNumber(_ageDays) })} · ${info}`,
        infoTitle: t(
          'S2 Underground publishes these KMZ products to GitHub. New uploads are detected within seconds and replace the previous edition automatically. Click a marker for its report.',
        ),
@@ -677,6 +809,7 @@ export function createGhostMapsLayer({
    getStats() {
      return {
        count: featureCount(),
+        ageDays: _ageDays,
        products: [..._loaded.keys()],
        commit: _catalog?.commit || null,
        lastUpdate: _catalog?.committedAt || _catalog?.changedAt || null,
@@ -693,7 +826,7 @@ export function createGhostMapsLayer({
      if (!_enabled) return [];
      const out = [];
      for (const [productId, item] of _loaded) {
-        for (const feature of item.features) {
+        for (const feature of item.features.values()) {
          if (out.length >= maxCount) return out;
          out.push({
            product: productId,
@@ -2,6 +2,7 @@ import assert from 'node:assert/strict';
 import test from 'node:test';
 import * as Cesium from 'cesium';
 import { createGhostMapsLayer } from './index.js';
+import { GHOSTMAPS_PRODUCTS, GHOSTMAPS_LATEST_DROP } from './catalog.js';

 function element(localName, children = [], value = '', attributes = {}) {
  const node = {
@@ -22,7 +23,7 @@ function element(localName, children = [], value = '', attributes = {}) {
  return node;
 }

-function documentFixture() {
+function documentFixture(reports = [{ name: 'Test report' }]) {
  return element('document', [
    element('kml', [
      element('Document', [
@@ -36,11 +37,14 @@ function documentFixture() {
          '',
          { id: 'pin' },
        ),
-        element('Placemark', [
-          element('name', [], 'Test report'),
-          element('styleUrl', [], '#pin'),
-          element('Point', [element('coordinates', [], '12,34')]),
-        ]),
+        ...reports.map(({ name, description = '', geometry }) =>
+          element('Placemark', [
+            element('name', [], name),
+            element('description', [], description),
+            element('styleUrl', [], '#pin'),
+            geometry || element('Point', [element('coordinates', [], '12,34')]),
+          ]),
+        ),
      ]),
    ]),
  ]);
@@ -83,11 +87,21 @@ function fixtureKmz() {
  return new Uint8Array(Buffer.concat([...local, directory, end]));
 }

-function fixture(t, { beforeFileReturns, onCreateUrl } = {}) {
+function fixture(
+  t,
+  {
+    beforeFileReturns,
+    onCreateUrl,
+    reports,
+    now,
+    products,
+    controls = {},
+  } = {},
+) {
  const previous = Object.getOwnPropertyDescriptor(globalThis, 'DOMParser');
  globalThis.DOMParser = class {
    parseFromString() {
-      return documentFixture();
+      return documentFixture(reports);
    }
  };
  t.after(() => {
@@ -119,9 +133,13 @@ function fixture(t, { beforeFileReturns, onCreateUrl } = {}) {
  };
  const layer = createGhostMapsLayer({
    storage: null,
+    now,
+    ...controls,
    source: {
      getCatalog: async () => ({
-        products: [{ id: 'cip', version: 'a'.repeat(40), defaultOn: true }],
+        products: products ?? [
+          { id: 'cip', version: 'a'.repeat(40), defaultOn: true },
+        ],
      }),
      getFile: async () => {
        beforeFileReturns?.(layer);
@@ -178,3 +196,416 @@ test('successful load keeps icons until the product is disabled', async (t) => {
  assert.deepEqual(revoked, created);
  assert.equal(mounted.size, 0);
 });
+
+const dated = (name, value, label = 'Date') => ({
+  name,
+  description: `<table><tr><td>${label}</td><td>${value}</td></tr></table>`,
+});
+
+const ageChip = (layer, days) =>
+  layer
+    .getRowControls()
+    .segmented.options.find(({ id }) => id === `age-${days ?? 'all'}`);
+
+test('age controls default to seven days and widening restores filtered and expired reports', async (t) => {
+  let at = Date.UTC(2026, 10, 3, 12);
+  const { layer, viewer, mounted } = fixture(t, {
+    now: () => at,
+    reports: [
+      dated('Old', '10/1/2026'),
+      dated('Ten days', '10/24/2026'),
+      dated('Recent', '11/2/2026'),
+      { name: 'Undated' },
+    ],
+  });
+  await layer.update(viewer);
+  assert.equal(layer.getStats().ageDays, 7);
+  assert.equal(ageChip(layer, 7).active, true);
+  assert.equal(layer.getStats().count, 2);
+  await ageChip(layer, 14).onClick();
+  assert.equal(layer.getStats().count, 3);
+  await ageChip(layer, null).onClick();
+  assert.equal(layer.getStats().count, 4);
+  at += 100 * 86400_000;
+  await layer.update(viewer);
+  assert.equal(layer.getStats().count, 4, 'all markers never ages out');
+  await ageChip(layer, 1).onClick();
+  assert.equal(layer.getStats().count, 1);
+  assert.equal(layer.getAnalystRecords()[0].name, 'Undated');
+  await ageChip(layer, null).onClick();
+  assert.equal(layer.getStats().count, 4);
+  assert.equal(mounted.size, 1, 'filter changes never duplicate data sources');
+  const controls = layer.getRowControls();
+  assert.equal(
+    controls.segmented.options.filter(({ active }) => active).length,
+    1,
+  );
+  assert.equal(
+    controls.chips.some(({ id }) => id.startsWith('age-')),
+    false,
+    'age options are one switch, not product chips',
+  );
+  assert.equal(ageChip(layer, null).active, true);
+});
+
+test('age preferences persist independently of product choices and reject invalid storage', async (t) => {
+  const values = new Map([['gev.ghostmaps.products', '["cip"]']]);
+  const storage = {
+    getItem: (key) => values.get(key) ?? null,
+    setItem: (key, value) => values.set(key, value),
+  };
+  await t.test('save All markers without changing products', async (t) => {
+    const { layer, viewer } = fixture(t, { controls: { storage } });
+    await layer.update(viewer);
+    await ageChip(layer, null).onClick();
+    assert.equal(values.get('gev.ghostmaps.ageDays'), 'null');
+    assert.equal(values.get('gev.ghostmaps.products'), '["cip"]');
+  });
+  await t.test('restore All markers and save thirty days', async (t) => {
+    const { layer } = fixture(t, { controls: { storage } });
+    assert.equal(layer.getStats().ageDays, null);
+    await ageChip(layer, 30).onClick();
+    assert.equal(values.get('gev.ghostmaps.ageDays'), '30');
+  });
+  await t.test('restore thirty days', (t) => {
+    const { layer } = fixture(t, { controls: { storage } });
+    assert.equal(layer.getStats().ageDays, 30);
+  });
+  for (const value of ['garbage', '"7"', '-1', '0', '2', '{}']) {
+    await t.test(`reject ${value}`, (t) => {
+      values.set('gev.ghostmaps.ageDays', value);
+      const { layer } = fixture(t, { controls: { storage } });
+      assert.equal(layer.getStats().ageDays, 7);
+    });
+  }
+});
+
+test('blocked storage still permits changing the age within the session', async (t) => {
+  const storage = {
+    getItem() {
+      throw new Error('blocked');
+    },
+    setItem() {
+      throw new Error('blocked');
+    },
+  };
+  const { layer, viewer } = fixture(t, { controls: { storage } });
+  await layer.update(viewer);
+  assert.equal(layer.getStats().ageDays, 7);
+  await ageChip(layer, null).onClick();
+  assert.equal(layer.getStats().ageDays, null);
+});
+
+test('a filter changed during a pending load never installs the superseded filter', async (t) => {
+  let changed = false;
+  const { layer, viewer, mounted, revoked, created } = fixture(t, {
+    now: () => Date.UTC(2026, 10, 3),
+    reports: [dated('Old', '10/1/2026')],
+    beforeFileReturns: (layer) => {
+      if (changed) return;
+      changed = true;
+      ageChip(layer, null).onClick();
+    },
+  });
+  await layer.update(viewer);
+  await layer.update(viewer);
+  assert.equal(layer.getStats().count, 1);
+  assert.equal(layer.getStats().ageDays, null);
+  assert.equal(mounted.size, 1);
+  assert.equal(
+    revoked.length,
+    created.length - 1,
+    'discarded load releases icons',
+  );
+});
+
+test('age filtering and All markers apply to every conflict-map product, including optional maps', async (t) => {
+  for (const product of [...GHOSTMAPS_PRODUCTS, GHOSTMAPS_LATEST_DROP]) {
+    await t.test(product.id, async (t) => {
+      const { layer, viewer, mounted } = fixture(t, {
+        now: () => Date.UTC(2026, 10, 3, 12),
+        products: [{ ...product, version: 'a'.repeat(40) }],
+        reports: [
+          dated(
+            'Old event',
+            '10/1/2026',
+            product.id === 'cip' ? 'Date of Event' : 'Date',
+          ),
+          dated('Recent event', '11/2/2026'),
+          { name: 'Undated reference feature' },
+        ],
+      });
+      await layer.update(viewer);
+      if (!product.defaultOn) {
+        layer
+          .getRowControls()
+          .chips.find(({ id }) => id === product.id)
+          .onClick();
+        await layer.update(viewer);
+      }
+      assert.deepEqual(layer.getStats().products, [product.id]);
+      assert.equal(layer.getStats().count, 2);
+      assert.deepEqual(
+        layer.getAnalystRecords().map(({ name }) => name),
+        ['Recent event', 'Undated reference feature'],
+      );
+      await ageChip(layer, null).onClick();
+      assert.equal(
+        layer.getStats().count,
+        3,
+        "All markers restores this product's old events",
+      );
+      await ageChip(layer, 7).onClick();
+      assert.equal(layer.getStats().count, 2);
+      assert.equal(mounted.size, 1);
+    });
+  }
+});
+
+test('default products filter old event dates while keeping recent, future and undated markers', async (t) => {
+  const { layer, viewer, mounted } = fixture(t, {
+    now: () => Date.UTC(2026, 10, 3, 12),
+    reports: [
+      dated('Old event', '10/20/2026'),
+      dated('Recent event', '11/2/2026'),
+      dated('At cutoff', '10/27/2026 12:00:00 PM'),
+      dated('Before cutoff', '10/27/2026 11:59:59 AM'),
+      dated('Future event', '11/4/2026'),
+      { name: 'Undated site' },
+      dated('Blank date', '&lt;Null&gt;'),
+      dated('Invalid date', '2/30/2026'),
+      dated('Only a report date', '10/1/2026', 'Date Of Report'),
+      {
+        name: 'Old event reported recently',
+        description:
+          '<table><tr><td>Date of Event</td><td>10/1/2026</td></tr><tr><td>Date Of Report</td><td>11/2/2026</td></tr></table>',
+      },
+    ],
+  });
+  await layer.update(viewer);
+  assert.deepEqual(layer.getStats().products, ['cip']);
+  assert.deepEqual(
+    layer.getAnalystRecords().map((r) => r.name),
+    [
+      'Recent event',
+      'At cutoff',
+      'Future event',
+      'Undated site',
+      'Blank date',
+      'Invalid date',
+      'Only a report date',
+    ],
+  );
+  assert.equal(layer.getStats().count, 7);
+  assert.equal([...mounted][0].entities.values.length, 7);
+  // Filtering cannot shift pick ids onto a different report.
+  assert.ok([...mounted][0].entities.getById('ghostmaps:cip:1:0'));
+  assert.equal(
+    [...mounted][0].entities.getById('ghostmaps:cip:0:0'),
+    undefined,
+  );
+});
+
+test('unchanged cached products age out on the timer, clear selected cards and keep surviving picks', async (t) => {
+  t.mock.timers.enable({ apis: ['setInterval'] });
+  let at = Date.UTC(2026, 10, 3, 12);
+  let click;
+  const cards = [];
+  const { layer, viewer, mounted } = fixture(t, {
+    now: () => at,
+    reports: [
+      dated('Expiring', '10/27/2026 12:00:00 PM'),
+      dated('Surviving', '11/2/2026'),
+    ],
+    controls: {
+      overlayHost: { setEntries: (_id, entries) => cards.push(entries) },
+      screenSpaceEventHandlerFactory: () => ({
+        setInputAction: (fn) => {
+          click = fn;
+        },
+        destroy() {},
+      }),
+      picking: { resolvePickId: (picked) => picked },
+    },
+  });
+  await layer.update(viewer);
+  const ds = [...mounted][0];
+  viewer.scene.pick = () => 'ghostmaps:cip:0:0';
+  click({ position: { x: 0, y: 0 } });
+  assert.equal(cards.at(-1).length, 1);
+  at += 60_000;
+  t.mock.timers.tick(60_000);
+  assert.equal(layer.getStats().count, 1);
+  assert.equal(ds.entities.values.length, 1);
+  assert.equal(ds.entities.getById('ghostmaps:cip:0:0'), undefined);
+  assert.ok(ds.entities.getById('ghostmaps:cip:1:0'));
+  assert.deepEqual(cards.at(-1), []);
+  await layer.update(viewer);
+  assert.equal([...mounted][0], ds, 'same-version KMZ is not reloaded');
+  viewer.scene.pick = () => 'ghostmaps:cip:1:0';
+  click({ position: { x: 0, y: 0 } });
+  assert.match(cards.at(-1)[0].title, /Surviving/);
+  layer.disable();
+  at += 14 * 86400_000;
+  t.mock.timers.tick(60_000);
+  assert.equal(mounted.size, 0);
+  layer.enable();
+  await layer.update(viewer);
+  assert.equal(layer.getStats().count, 0);
+});
+
+test('expiry removes every geometry and polygon outline belonging to an old report', async (t) => {
+  t.mock.timers.enable({ apis: ['setInterval'] });
+  // 10/27 is a whole UTC day: at 7d it expires when 11/3 ends.
+  let at = Date.UTC(2026, 10, 4) - 30_000;
+  const polygon = element('Polygon', [
+    element('outerBoundaryIs', [
+      element('LinearRing', [
+        element('coordinates', [], '12,34 13,34 13,35 12,34'),
+      ]),
+    ]),
+  ]);
+  const { layer, viewer, mounted } = fixture(t, {
+    now: () => at,
+    reports: [
+      {
+        ...dated('Multi-part', '10/27/2026'),
+        geometry: element('MultiGeometry', [
+          element('Point', [element('coordinates', [], '12,34')]),
+          element('LineString', [element('coordinates', [], '12,34 13,35')]),
+          polygon,
+        ]),
+      },
+    ],
+  });
+  await layer.update(viewer);
+  const ds = [...mounted][0];
+  assert.equal(ds.entities.values.length, 4);
+  at += 60_000;
+  t.mock.timers.tick(60_000);
+  assert.equal(ds.entities.values.length, 0);
+  assert.equal(layer.getStats().count, 0);
+});
+
+test('narrowing then returning to the previous window restores its reports without a duplicate source', async (t) => {
+  const { layer, viewer, mounted } = fixture(t, {
+    now: () => Date.UTC(2026, 10, 3, 12),
+    reports: [dated('Today', '11/3/2026'), dated('Three days', '10/31/2026')],
+  });
+  await layer.update(viewer);
+  assert.equal(layer.getStats().count, 2);
+  await ageChip(layer, 1).onClick();
+  assert.equal(layer.getStats().count, 1);
+  await ageChip(layer, 7).onClick();
+  await layer.update(viewer);
+  assert.equal(layer.getStats().count, 2, '7d must show both reports again');
+  assert.equal(mounted.size, 1);
+});
+
+test('two quick clicks, 1d then 7d, restore the report', async (t) => {
+  const at = Date.UTC(2026, 10, 3, 12);
+  const { layer, viewer } = fixture(t, {
+    now: () => at,
+    reports: [dated('Today', '11/3/2026'), dated('Three days', '10/31/2026')],
+  });
+  await layer.update(viewer);
+  const a = ageChip(layer, 1).onClick();
+  const b = ageChip(layer, 7).onClick();
+  await a;
+  await b;
+  await layer.update(viewer);
+  assert.equal(layer.getStats().count, 2);
+});
+
+test('narrowing the window keeps the open card of a surviving marker', async (t) => {
+  let click;
+  const cards = [];
+  const { layer, viewer } = fixture(t, {
+    now: () => Date.UTC(2026, 10, 3, 12),
+    reports: [dated('Recent', '11/2/2026'), dated('Older', '10/20/2026')],
+    controls: {
+      overlayHost: { setEntries: (_id, entries) => cards.push(entries) },
+      screenSpaceEventHandlerFactory: () => ({
+        setInputAction: (fn) => {
+          click = fn;
+        },
+        destroy() {},
+      }),
+      picking: { resolvePickId: (picked) => picked },
+    },
+  });
+  await layer.update(viewer);
+  await ageChip(layer, 30).onClick();
+  assert.equal(layer.getStats().count, 2);
+  viewer.scene.pick = () => 'ghostmaps:cip:0:0';
+  click({ position: { x: 0, y: 0 } });
+  assert.equal(cards.at(-1).length, 1);
+  await ageChip(layer, 3).onClick();
+  assert.equal(layer.getStats().count, 1);
+  assert.equal(
+    cards.at(-1).length,
+    1,
+    'card of the surviving marker stays open',
+  );
+});
+
+test('a report dated yesterday is shown by 1d one hour into today (UTC)', async (t) => {
+  const { layer, viewer } = fixture(t, {
+    now: () => Date.UTC(2026, 10, 6, 1),
+    reports: [dated('Yesterday', '11/5/2026')],
+  });
+  await layer.update(viewer);
+  await ageChip(layer, 1).onClick();
+  assert.equal(layer.getStats().count, 1);
+});
+
+test('a widened reload that returns a different report at the selected index closes its card', async (t) => {
+  let click;
+  const cards = [];
+  const reports = [dated('Recent', '11/2/2026'), dated('Older', '10/20/2026')];
+  const { layer, viewer } = fixture(t, {
+    now: () => Date.UTC(2026, 10, 3, 12),
+    reports,
+    controls: {
+      overlayHost: { setEntries: (_id, entries) => cards.push(entries) },
+      screenSpaceEventHandlerFactory: () => ({
+        setInputAction: (fn) => {
+          click = fn;
+        },
+        destroy() {},
+      }),
+      picking: { resolvePickId: (picked) => picked },
+    },
+  });
+  await layer.update(viewer);
+  viewer.scene.pick = () => 'ghostmaps:cip:0:0';
+  click({ position: { x: 0, y: 0 } });
+  assert.equal(cards.at(-1).length, 1);
+  // The server answers the pinned version with a newer edition's bytes.
+  reports[0] = dated('Replacement', '11/2/2026');
+  await ageChip(layer, 30).onClick();
+  assert.equal(layer.getStats().count, 2);
+  assert.equal(
+    cards.at(-1).length,
+    0,
+    'a different report must not keep the old card',
+  );
+});
+
+test('narrowing to a window the loaded data covers clears a failed wider reload', async (t) => {
+  let fail = false;
+  const { layer, viewer } = fixture(t, {
+    now: () => Date.UTC(2026, 10, 3, 12),
+    reports: [dated('Recent', '11/2/2026'), dated('Older', '10/20/2026')],
+    beforeFileReturns: () => {
+      if (fail) throw new Error('network down');
+    },
+  });
+  await layer.update(viewer);
+  fail = true;
+  await ageChip(layer, 30).onClick();
+  assert.ok(layer.getStats().error, 'the wider reload failed');
+  await ageChip(layer, 3).onClick();
+  assert.equal(layer.getStats().error, null);
+  assert.equal(layer.getStats().count, 1);
+});
@@ -1,4 +1,4 @@
-// Pure helpers for GhostMaps placemarks: description tables to plain fields,
+// Pure helpers for GhostMaps placemarks: report fields and event dates,
 // KML colors, and card text wrapping. Strings in, data out — description
 // markup is only ever read as text, never inserted into the page.

@@ -51,6 +51,106 @@ const MAX_FIELDS = 24;
 const MAX_VALUE = 600;
 const MAX_LINKS = 6;

+// Use the same leaf rows for report cards and event dates, without the card's
+// field-count/value-length limits affecting the age filter.
+function* descriptionRows(source) {
+  for (const row of source.matchAll(
+    /<tr\b[^>]*>((?:(?!<tr\b)[\s\S])*?)<\/tr\s*>/gi,
+  )) {
+    const cells = [
+      ...row[1].matchAll(/<t[dh]\b[^>]*>([\s\S]*?)<\/t[dh]\s*>/gi),
+    ].map((cell) => cell[1]);
+    if (cells.length === 2)
+      yield {
+        label: htmlToText(cells[0]),
+        value: htmlToText(cells[1]),
+        markup: cells[1],
+      };
+  }
+}
+
+export const GHOSTMAPS_DEFAULT_AGE_DAYS = 7;
+export const GHOSTMAPS_AGE_OPTIONS = Object.freeze([1, 3, 7, 14, 30, null]);
+
+/** ArcGIS US dates (optionally with a time) and ISO dates, interpreted in UTC
+ * when no zone is supplied. A date without a time means the whole UTC day, so
+ * it resolves to the day's last millisecond: "1d" still shows yesterday's
+ * reports. Reject calendar rollovers instead of guessing. */
+export function parseGhostMapsEventDate(value) {
+  const input = String(value ?? '').trim();
+  const us =
+    /^(\d{1,2})\/(\d{1,2})\/(\d{4})(?:\s+(\d{1,2}):(\d{2})(?::(\d{2}))?\s*(AM|PM))?$/i.exec(
+      input,
+    );
+  const iso =
+    /^(\d{4})-(\d{2})-(\d{2})(?:T(\d{2}):(\d{2})(?::(\d{2})(?:\.\d{1,3})?)?(?:Z|[+-]\d{2}:\d{2})?)?$/.exec(
+      input,
+    );
+  if (!us && !iso) return null;
+  const year = Number(us ? us[3] : iso[1]);
+  const month = Number(us ? us[1] : iso[2]);
+  const day = Number(us ? us[2] : iso[3]);
+  let hour = Number(us?.[4] ?? iso?.[4] ?? 0);
+  const minute = Number(us?.[5] ?? iso?.[5] ?? 0);
+  const second = Number(us?.[6] ?? iso?.[6] ?? 0);
+  if (us?.[7]) {
+    if (hour < 1 || hour > 12) return null;
+    hour = (hour % 12) + (us[7].toUpperCase() === 'PM' ? 12 : 0);
+  }
+  const at = Date.UTC(year, month - 1, day, hour, minute, second);
+  const date = new Date(at);
+  if (
+    year < 1900 ||
+    month < 1 ||
+    month > 12 ||
+    day < 1 ||
+    date.getUTCDate() !== day ||
+    hour > 23 ||
+    minute > 59 ||
+    second > 59
+  )
+    return null;
+  if (iso?.[4]) {
+    const zoned = /(?:Z|[+-]\d{2}:\d{2})$/.test(input) ? input : `${input}Z`;
+    const parsed = Date.parse(zoned);
+    return Number.isFinite(parsed) ? parsed : null;
+  }
+  return us?.[4] ? at : at + 86400_000 - 1;
+}
+
+/** The event's date, never its report/upload date or dates mentioned in prose. */
+export function ghostMapsEventDate(description) {
+  const rows = [
+    ...descriptionRows(
+      String(description ?? '').replace(
+        /<(script|style|head)\b[\s\S]*?<\/\1\s*>/gi,
+        ' ',
+      ),
+    ),
+  ];
+  for (const name of ['dateofevent', 'eventdate', 'date']) {
+    for (const { label, value } of rows) {
+      if (label.toLowerCase().replace(/[\s_]+/g, '') !== name) continue;
+      const at = parseGhostMapsEventDate(value);
+      if (at !== null) return at;
+    }
+  }
+  return null;
+}
+
+/** Unknown and future dates stay visible; only a confirmed old event expires. */
+export function isGhostMapsEventExpired(
+  dateMs,
+  now = Date.now(),
+  ageDays = GHOSTMAPS_DEFAULT_AGE_DAYS,
+) {
+  return (
+    ageDays !== null &&
+    Number.isFinite(dateMs) &&
+    dateMs < now - ageDays * 86400_000
+  );
+}
+
 /**
 * Fields and links from a placemark description. ArcGIS "popup" exports are a
 * two-column table (label, value); anything else becomes one unlabelled field.
@@ -73,18 +173,10 @@ export function parseDescriptionFields(html) {
  };
  // Innermost rows only: ArcGIS nests the field table inside an outer row,
  // and only leaf rows with exactly two cells are label/value pairs.
-  for (const row of source.matchAll(
-    /<tr\b[^>]*>((?:(?!<tr\b)[\s\S])*?)<\/tr\s*>/gi,
-  )) {
-    const cells = [
-      ...row[1].matchAll(/<t[dh]\b[^>]*>([\s\S]*?)<\/t[dh]\s*>/gi),
-    ].map((cell) => cell[1]);
-    if (cells.length !== 2) continue;
-    const label = htmlToText(cells[0]);
-    const value = htmlToText(cells[1]);
+  for (const { label, value, markup } of descriptionRows(source)) {
    if (!label || SKIPPED_LABELS.has(label.toLowerCase())) continue;
    if (EMPTY_VALUES.has(value.toLowerCase())) continue;
-    addLinks(cells[1]);
+    addLinks(markup);
    // A bare research link is carried by `links`; the card does not need
    // the URL twice.
    if (/^https?:\/\/\S+$/i.test(value)) continue;
@@ -7,8 +7,83 @@ import {
  kmlColor,
  parseDescriptionFields,
  wrapCardText,
+  ghostMapsEventDate,
+  isGhostMapsEventExpired,
+  parseGhostMapsEventDate,
 } from './records.js';

+test('event dates parse ArcGIS calendar dates and timestamps consistently in UTC', () => {
+  for (const [value, iso] of [
+    ['10/28/2026', '2026-10-28T23:59:59.999Z'],
+    ['10/28/2026 6:12:00 PM', '2026-10-28T18:12:00Z'],
+    ['1/17/2026 9:46:41 AM', '2026-01-17T09:46:41Z'],
+    ['10/28/2026 12:00 AM', '2026-10-28T00:00:00Z'],
+    ['10/28/2026 12:00 PM', '2026-10-28T12:00:00Z'],
+    ['2026-10-28', '2026-10-28T23:59:59.999Z'],
+    ['2026-10-28T12:34:56', '2026-10-28T12:34:56Z'],
+    ['2026-10-28T12:34:56.123-04:00', '2026-10-28T16:34:56.123Z'],
+    ['2/29/2024', '2024-02-29T23:59:59.999Z'],
+  ])
+    assert.equal(parseGhostMapsEventDate(value), Date.parse(iso), value);
+  for (const value of [
+    '',
+    '<Null>',
+    'N/A',
+    'unknown',
+    '2/29/2026',
+    '9/31/2026',
+    '2026-02-30',
+    '13/1/2026',
+    '1/0/2026',
+    '10/28/2026 13:00 PM',
+    '2026-10-28T24:00:00Z',
+    '2026-10-28T12:60:00Z',
+  ]) {
+    assert.equal(parseGhostMapsEventDate(value), null, value);
+  }
+});
+
+test('event date fields take precedence over report dates and prose, even after long report tables', () => {
+  const row = (label, value) => `<tr><td>${label}</td><td>${value}</td></tr>`;
+  const html = `<table><tr><td><table>${
+    row('Date Of Report', '11/2/2026') +
+    row('Description', 'Incident mentioned on 11/1/2026') +
+    Array.from({ length: 30 }, (_, i) => row(`Field${i}`, 'value')).join('') +
+    row('Date', '10/30/2026') +
+    row('Date of Event', '10/28/2026')
+  }</table></td></tr></table>`;
+  assert.equal(ghostMapsEventDate(html), Date.UTC(2026, 9, 29) - 1);
+  assert.equal(
+    ghostMapsEventDate(
+      `<table>${row('Date', '&lt;Null&gt;')}${row('Date Of Report', '11/2/2026')}</table>`,
+    ),
+    null,
+  );
+  assert.equal(
+    ghostMapsEventDate(`<table>${row('Date_Of_Event', '10/28/2026')}</table>`),
+    Date.UTC(2026, 9, 29) - 1,
+  );
+  assert.equal(ghostMapsEventDate('Occurred 10/28/2026'), null);
+  assert.equal(
+    ghostMapsEventDate(
+      `<script><table>${row('Date', '1/1/2020')}</table></script>`,
+    ),
+    null,
+  );
+});
+
+test('seven-day expiry keeps the exact boundary, future dates and unknown dates', () => {
+  const at = Date.UTC(2026, 10, 3, 12);
+  assert.equal(isGhostMapsEventExpired(Date.UTC(2026, 9, 27, 12), at), false);
+  assert.equal(
+    isGhostMapsEventExpired(Date.UTC(2026, 9, 27, 12) - 1, at),
+    true,
+  );
+  assert.equal(isGhostMapsEventExpired(Date.UTC(2026, 10, 4), at), false);
+  for (const value of [null, undefined, NaN])
+    assert.equal(isGhostMapsEventExpired(value, at), false);
+});
+
 // The shape ArcGIS Pro writes into every S2 placemark description.
 const ARCGIS = `<html xmlns:fo="http://www.w3.org/1999/XSL/Format"><head>
 <META http-equiv="Content-Type" content="text/html"></head>
@@ -27,6 +102,14 @@ const ARCGIS = `<html xmlns:fo="http://www.w3.org/1999/XSL/Format"><head>
 function changeImage(a, b) { document.getElementById('x').innerHTML = b; }
 </script></html>`;

+test('custom ages change the cutoff and all markers disables expiry', () => {
+  const at = Date.UTC(2026, 10, 3, 12);
+  const event = at - 10 * 86400_000;
+  assert.equal(isGhostMapsEventExpired(event, at, 7), true);
+  assert.equal(isGhostMapsEventExpired(event, at, 14), false);
+  assert.equal(isGhostMapsEventExpired(event, at, null), false);
+});
+
 test('ArcGIS popup tables become plain label/value fields and http links', () => {
  const { fields, links } = parseDescriptionFields(ARCGIS);
  assert.deepEqual(fields, [