Agency
NWS
Refresh cadence
every 15 min
Last successful sync
Pending first sync
Pipelines
sigmet_sync
Category
Weather
About this dataset
Hazards advisory covering severe icing, severe turbulence, dust storms, sandstorms, volcanic ash and convective activity. Geometry polygons + altitude bands + validity windows. Renders SIGMET overlays on the planning map and feeds the hazard avoidance tool.
Where this feed reaches
- Continental United States
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.