TAF field description

For a more in-depth description of TAF fields, please refer to TAF Decoder information from the NWS

Field #	Field Name	Description	Field Type	Units
1	raw_text	The raw TAF in text	string
2	station_id	Station identifier; Always a four character alphanumeric ( A-Z, 0-9 )	string
3	issue_time	Issue time (date and time the forecast was prepared) in ISO8601 date/time	string	ISO8601 date/time
4	bulletin_time	Bulletin time (obtained from the WMO Header of the data) in ISO8601 date/time	string	ISO8601 date/time
5	valid_time_from	The start time of when the report is valid (in ISO8601 date/time).	string	ISO8601 date/time
6	valid_time_to	The end time for when the report is valid (in ISO8601 date/time).	string	ISO8601 date/time
7	remarks	Any remarks.	string
8	latitude	Latitude	float	(decimal) degrees
9	longitude	Longitude	float	(decimal) degrees
10	elevation_m	Elevation	float	m
11	time_from	The start of the forecast time (ISO8601 date/time)	string	ISO8601 date/time
12	time_to	The end time of the forecast (ISO8601 date/time)	string	ISO8601 date/time
13	change_indicator	Forecast change indicator: TEMPO\|BECMG\|FM\|PROB	string
14	time_becoming	Time becoming (ISO8601 date/time)	string	ISO8601 date/time
15	probability	Percent probability	integer
16	wind_dir_degrees	Wind direction-the direction from where the wind is blowing	integer	degree
17	wind_speed_kt	Wind speed	integer	kt
18	wing_gust_kt	Wind gust	integer	kt
19	wind_shear_hgt_ft_agl	Wind shear height above ground level	integer	ft AGL
20	wind_shear_dir_degrees	Wind shear direction	integer	degree
21	wind_shear_speed_kt	Wind shear speed	integer	kt
22	visibility_statute_mi	Visibility (horizontal)	float	statute mi
23	altim_in_hg	Altimeter	float	inches of mercury
24	vert_vis_ft	Vertical visibility	integer	ft
25	wx_string	Weather	string
26	not_decoded	Indicates what isn't decoded	string
27	sky_cover	Sky coverage. Values are: NSC\|SKC\|CLR\|SKT\|BKN\|FEW\|OVC\|OVCX	string
28	cloud_base_ft_agl	Cloud base	integer	ft AGL
29	cloud_type	Cloud type: CB\|TCU\|CU	string
30	turbulence_intensity	Turbulence intensity values: [0-9] Please refer to WMO No. 306 Manual on Codes for more details.	string
31	turbulence_min_alt_ft_agl	Minimum altitude for turbulence	integer	ft AGL
32	turbulence_max_alt_ft_agl	Maximum altitude for turbulence	integer	ft AGL
33	icing_intensity	Icing intensity values: [0-9] Please refer to WMO No. 306 Manual on Codes for more details.	string
34	icing_min_alt_ft_agl	Minimum altitude for icing	integer	ft AGL
35	icing_max_alt_ft_agl	Maximum altitude for icing	integer	ft AGL
36	valid_time	Temperature valid time (ISO8601 date/time)	string	ISO8601 date/time
37	sfc_temp_c	Surface temperature	float	C
38	max_temp_c	Max temp	float	C
39	min_temp_c	Min temp	float	C

	NOAA's National Weather Service
	Aviation Weather Center Aviation Digital Data Service (ADDS)