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NWSWeather

TAF (Terminal Aerodrome Forecasts)

Terminal forecasts covering 24–30 hours of expected conditions at major airports.

Agency

NWS

Update cadence

Every 6 hours (issued), amended as needed, polled every 10 minutes

Category

Weather

What we ingest

Raw TAF text + parsed fields including FM/BECMG/TEMPO change groups for ~700 TAF sites across the covered regions listed below — the continental US plus Hawaii, Puerto Rico, the US Virgin Islands, Guam, the Northern Mariana Islands and American Samoa. Alaskan TAFs reach us through the Nav Canada METAR/TAF relay listed separately below, not through this feed.

Where this feed reaches

A region on this list means we fetch it. It is not a promise of station density: a listed region can still have sparse or no reporting sites near a given airport. Where a feed does not reach a region at all, this page says so instead of showing an empty panel.

  • Continental United States
  • Hawaii
  • Puerto Rico and the US Virgin Islands
  • Guam and the Northern Mariana Islands
  • American Samoa

How AeroCopilot uses it

Drives the AI departure/arrival window analysis and is central to the briefing tool.

Powers these features

The product surfaces below depend on this feed.

Pre-flight briefingAI CopilotAlternate selection

Upstream source: https://aviationweather.gov/data/api/

Cite this

Permalink

AeroCopilot — TAF (Terminal Aerodrome Forecasts). Data: NWS (https://aviationweather.gov/data/api/). https://www.aerocopilot.ai/data-sources/taf.

Try the AI Copilot with this data

The Copilot has live access to TAF (Terminal Aerodrome Forecasts) during every conversation.