Layer previews

Map

One RFC 7946 FeatureCollection per hazard layer.

no key required CORS-open

Layersone GET per selected layer, exactly what a MapLibre, Leaflet or QGIS source points at · every response carries metadata.sourceStatus — an UNAVAILABLE layer draws nothing, and nothing on the map is not an all-clear

Feed metadata

GET …/map/{layer}.geojson

one row per selected layer · a degraded row says why

Unlocated features

Features with "geometry": null — e.g. a county-wide advisory — are valid and can't be drawn on the map, so they are listed here instead (never dropped).