Agency
NWS
Refresh cadence
every 5 min
Last successful sync
Pending first sync
Pipelines
metar_sync
Category
Weather
About this dataset
Hourly aviation observations encoding wind, visibility, ceiling, temperature, dewpoint, altimeter and remarks. Raw METAR text + parsed fields for reporting stations across the covered regions listed below — roughly 5,000 stations in the continental US, plus Hawaii, Puerto Rico, the US Virgin Islands, Guam, the Northern Mariana Islands and American Samoa. Station density in the island territories is a fraction of the continental figure, so an airport there may have no nearby reporting station at all. Alaska is not in this feed: Alaskan observations reach us through the Nav Canada METAR/TAF relay listed separately below, because two jobs writing the same station and observation time would collide. Powers the weather briefing tool, go/no-go advisories, and the airport directory current-conditions block.
Where this feed reaches
- Continental United States
- Hawaii
- Puerto Rico and the US Virgin Islands
- Guam and the Northern Mariana Islands
- American Samoa
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 you'll see it in AeroCopilot
Upstream publisher
aviationweather.gov/data/api/AeroCopilot is the canonical pipeline for this dataset inside the product. The link above goes to the upstream publisher for full documentation and data licensing.