Agency
NWS
Refresh cadence
every 15 min
Last successful sync
Pending first sync
Pipelines
isigmet_sync
Category
Other
About this dataset
Significant-meteorology advisories for international and oceanic FIRs. International SIGMET bulletins by FIR: hazard type (turbulence, icing, volcanic ash, tropical cyclone), severity qualifier, base and top altitudes, movement, and the raw bulletin text. Cross-border and oceanic AI briefings, including the volcanic-ash hazard where an FIR reports one.
Where this feed reaches
- Global — no regional boundary applies
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.