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ADDS - Aviation Digital Data Service
 
 

 
 

METAR field description




Field #
Field Name
Description
Field Type
Units
1
raw_text The raw METAR string
2
station_id Station identifier; Always a four character alphanumeric( A-Z, 0-9) string
3
observation_time Time( in ISO8601 date/time format) this METAR was observed. string ISO
8601 date/
time
4
latitude
The latitude (in decimal degrees )of the station that reported this METAR
float
decimal degrees
5
longitude
The longitude (in decimal degrees) of the station that reported this METAR
float
decimal degrees
6
temp_c
Air temperature
float C
7
dewpoint_c
Dewpoint temperature
float C
8
wind_dir_degrees
Direction from which the wind is blowing. 0 degrees=variable wind direction.
integer degrees
9
wind_speed_kt
Wind speed; 0 degree wdir and 0 wspd = calm winds
integer kts
10
wind_gust_kt
Wind gust
integer kts
11
visibility_statute_mi Horizontal visibility float
statute miles
12
altim_in_hg Altimeter float
inches of Hg
13
sea_level_pressure_mb Sea-level pressure float mb
14
quality_control_flags Quality control flags provide useful information about the METAR station(s) that provide the data.
string
15
wx_string wx_string descriptions
string
16
sky_cover Sky cover, up to four levels of sky cover can be reported ; OVX present when vert_vis_ft is reported.

Allowed values:
SKC|CLR|CAVOK|FEW|SCT|BKN|OVC|OVX
string
17
cloud_base_ft_agl Height of cloud base in feet AGL. Up to four levels can be reported. A value exists when the corresponding skyCover='FEW','SCT','BKN', 'OVC'
integer ft (AGL)
18
flight_category Flight category of this METAR.

Values: VFR|MVFR|IFR|LIFR
See http://www.aviationweather.gov/adds/metars/description/page_no/4
string
19
three_hr_pressure_tendency_mb
Pressure change in the past 3 hours
float
mb
20
maxT_c
Maximum air temperature from the past 6 hours
float
C
21
minT_c
Minimum air temperature from the past 6 hours
float
C
22
maxT24hr_c
Maximum air temperature from the past 24 hours
float
C
23
minT24hr_c
Minimum air temperature from the past 24 hours
float
C
24
precip_in
Liquid precipitation since the last regular METAR
float
in
25
pcp3hr_in
Liquid precipitation from the past 3 hours. 0.0005 in = trace precipitation
float
in
26
pcp6hr_in
Liquid precipitation from the past 6 hours. 0.0005 in = trace precipitation
float
in
27
pcp24hr_in
Liquid precipitation from the past 24 hours. 0.0005 in = trace precipitation
float
in
28
snow_in
Snow depth on the ground
float
in
29
vert_vis_ft Vertical Visibility integer ft
30
metar_type
METAR or SPECI
string

31
elevation_m
The elevation of the station that reported this METAR
float
meters



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