AVIATION WEATHER CENTER

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TDS: AIR/SIGMET Field Descriptions

Field #	Field Name	Description	Field Type	Units
1	raw_text	The raw AIRSIGMET	string
2	valid_time_from	The start time of when the report is valid (in ISO8601 date/time format).	string	ISO8601 date/time
3	valid_time_to	The end time for when the report is valid (in ISO8601 date/time format).	string	ISO8601 date/time
4	min_ft_msl	Minimum altitude, in feet (MSL).	integer	ft MSL (mean sea-level)
5	max_ft_msl	Maximum altitude, in feet (MSL).	integer	ft MSL (mean sea-level)
6	movement_dir_degrees	Movement direction of the AIRSIGMET condition.	integer	degrees
7	movement_speed_kt	Speed in which the AIRSIGMET condition is moving.	integer	kt
8	hazard	The hazard type and severity. Hazard types can be one of the following: MTN OBSCN \| IFR \| TURB \| ICE \| CONVECTIVE \| ASH . The severity is one of the following: NONE \| LT-MOD \| MOD \| MOD-SEV \| SEV .	string
9	airsigmet_type	The type of report: OUTLOOK, AIRMET or SIGMET	string
10	area	An array of points defining the polygon
10.1	latitude	Latitude of a point comprising the AIRSIGMET region	float	(decimal) degrees
10.2	longitude	Longitude of a point comprising the AIRSIGMET region.	float	(decimal) degrees

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