NOTAMs

Provides access to NOTAMs (Notices to Air Missions) from the FAA NOTAM Management System (NMS). NOTAMs contain time-critical aeronautical information about airport closures, airspace restrictions, runway conditions, navigation aid outages, and other flight safety hazards. Query by airport identifier, geographic radius, along a flight route, by NOTAM number, or search across all active NOTAMs. Each NOTAM is returned as a GeoJSON Feature with geographic geometry and detailed properties including effective dates, classification, text content, and plain-English translations.

NOTAM data is synced from the FAA NMS system every 3 minutes via background delta sync, with a full refresh daily. Expired and cancelled NOTAMs are periodically purged from the database. Most endpoints automatically exclude expired and cancelled NOTAMs that have not yet been purged. The GET id/{nmsId} and GET number/{notamNumber} endpoints skip this filter, so they may return recently expired or cancelled NOTAMs that are still awaiting purge. Permanent NOTAMs (no expiration date) remain active indefinitely until manually cancelled.