OptionalaltitudeAltitude range of the hazard (e.g. BTN FL250 AND FL380).
Area definition points delineating the affected region. Uses VOR-relative format (e.g. "30NW ALB", "40E PDX") from FROM/TO lines.
Area definition points from BOUNDED BY format, used for LLWS POTENTIAL areas. Uses VOR-relative format with dash-separated points.
OptionalcauseCause of the hazard as stated in a DUE TO clause (e.g. "JTST", "LFNT").
True when the affected area includes adjacent coastal waters.
OptionalconditionRaw condition description text (e.g. "CIG BLW 010/VIS BLW 3SM BR", "MOD TURB BTN FL250 AND FL380").
OptionalconditionsCondition timing information for this hazard area.
The type of weather hazard.
US state abbreviations and area codes affected by the hazard.
A single hazard area within an AIRMET bulletin. Each bulletin may contain multiple hazard areas covering different geographic regions or hazard types.