OptionalendEnd of the condition time window (UTC). For DEVELOPING: the end of the DVLPG window (e.g. 21Z in "DVLPG 18-21Z"). For CONTINUING: the THRU time when given (e.g. 03Z in "CONTG BYD 21Z THRU 03Z"). For ENDING: the end of the ENDG window (e.g. 04Z in "ENDG 0200-0400Z"), or the BY time (e.g. 00Z in "ENDG BY 00Z").
OptionalisQualifier for DEVELOPING conditions indicating the conditions develop after a specific time rather than during a range (e.g. "DVLPG AFT 00Z").
OptionalstartStart of the condition time window (UTC). For DEVELOPING: the start of the DVLPG window (e.g. 18Z in "DVLPG 18-21Z"). For CONTINUING: the time beyond which conditions continue (e.g. 21Z in "CONTG BYD 21Z"). For ENDING: the start of the ENDG window (e.g. 02Z in "ENDG 0200-0400Z").
Status of the conditions (developing, continuing, or ending).
Condition timing information for an AIRMET hazard area. Describes when the hazard conditions are expected to develop, continue, or end.