Sources / NOAA / National Weather Service

National Weather Service — alerts and forecasts

No run yet continuous GeoJSON, JSON-LD, CAP XML, Atom phase 2

Legal basis

Federal work, public domain. NWS states the API is "intended to be open data, free to use for any purpose." The cleanest licence in the build.

Source

https://api.weather.gov

Probed live on 29 August 2026. The endpoint answered.

What it covers

Known gaps and gotchas

No key, but a User-Agent identifying the application is required. Tampa Bay office code is TBW. Retry after ~5s on 429.

Other sources