World Area Forecast System(WAFS) Wind/TMP/RH/HGT (via KWBC SADIS)
GET
/ukmet/wafs/kwbc/grib2
This data is created and distributed by the World Area Forecast Center (WAFC) in Washington (KWBC), which operates WAFS, and consists of a high-resolution grid with intervals of 1.25 degrees (approx. 140 km mesh (near the equator)) in lat and lon.
Weather elements are digitized in a grid format using a standard format called GRIB (Gridded Binary) and provided as forecast data for each location.
The forecast elements provided include the following:
- Wind(UGRD: U-component of Wind)
Wind speed component in the east-west direction. Positive values indicate eastward winds, while negative values indicate westward winds. - Wind(VGRD: V-component of Wind)
Wind speed component in the north-south direction. Positive values indicate northward winds, while negative values indicate southward winds. - Temperature(TMP)
Temperature is expressed in Kelvin (K). - Relative Humidity(RH)
The amount of water vapor in the air is expressed as a percentage (%). 100% means saturation. - Geopotential Height(HGT)
Forecasts are issued every three hours and cover the next six to 36 hours.
Update Times (UTC)
- 01:35
- 07:35
- 13:35
- 19:35
- Updates may be performed manually as necessary at times other than those listed above.
Responses
Wx data (KWBC) obtained from UKMET SADIS with a resolution of 1.25 degrees
application/json
JSON
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{
"BaseTime": "2025073000",
"ForecastTime": "2025073000",
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}
]
}