Road Conditions (US corridor)
POST an origin and destination ("lat,lon" or a US place name) and get one CLEAR / CAUTION / SEVERE verdict for the corridor between them: active National Weather Service alerts sampled every ~120 km along a great-circle corridor (deduped, severity-ranked - blizzard/ice/tornado/high-wind warnings and any Extreme alert drive SEVERE), plus WZDx work-zone events within 30 km from every state DOT that publishes a keyless feed, full closures first. Coverage is honest by construction: the response lists which crossed states have a live work-zone feed, which do not, and which feeds failed on this read - nothing is silently faked. Geocoding and NWS reachability are proven before your payment settles; if corridor weather coverage degrades below half after payment the call auto-refunds. Zone-scale conditions on a straight-line corridor, not turn-by-turn routing.
Networks
Regions
Tags
How to use
Sample response
{"route":{"origin":{"input":"Chicago, IL","lat":41.8781,"lon":-87.6298},"destination":{"input":"Atlanta, GA","lat":33.749,"lon":-84.388},"distance_km":944,"corridor_sample_points":9,"states_crossed":["IL","IN","KY","TN","GA"]},"verdict":{"status":"CAUTION","flags":["weather_advisories_on_corridor","lane_closure_work_zones_on_corridor"],"confidence":"medium","summary":"Chicago -> Atlanta (944 km): CAUTION. 3 active NWS alerts on the corridor (Heat Advisory); 12 work zones within 30 km including 0 full closures."},"weather":{"active_alerts":[{"event":"Heat Advisory","severity":"Moderate","area":"Cook County"}],"total_alerts":3,"counts_by_severity":{"extreme":0,"severe":0,"moderate":3,"minor":0}},"work_zones":{"total_on_corridor":12,"all_lanes_closed":0,"some_lanes_closed":4,"corridor_buffer_km":30,"events":[{"road_names":["I-65"],"vehicle_impact":"some-lanes-closed","state":"indiana","distance_from_corridor_km":1.2}]},"coverage":{"nws":"nationwide; 9/9 corridor samples reachable","wzdx":{"states_crossed":["illinois","indiana","kentucky","tennessee","georgia"],"states_with_live_feed":["indiana","kentucky"],"states_without_public_feed":["illinois","tennessee","georgia"],"feeds_failed_this_read":[]}},"data_quality":{"stale_sources":[],"computed_at":"2026-07-15T21:00:00Z"}}curl -X GET 'https://proxy.suverse.io/v1/data/road-conditions'