World Area Forecast System(WAFS) TURB/ICE/CB (via KWBC WIFS)

GET

/faa/wafs025/kwbc/{element}

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 0.25 degrees (approx. 25 km) 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:

• CB (cumulonimbus cloud) cloud top or cloud base altitude (meters)
• ICE(Possibility of icing)Pressure levels(hPa): 300, 400, 500, 600, 700, 800
• TURB(turbulence intensity)Pressure levels(hPa): 150, 200, 250, 300, 350, 400, 500, 600, 700

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.

Parameters

Path Parameters

element*

Specify the elements to be retrieved.
CB: Cumulonimbus cloud
ICE: ICE severity index
TURB: Turbulence Eddy dissipation rate

Typestring

Required

Enum

cbiceturb

Examplecb

Responses

Wx data obtained from FAA WAFS with a resolution of 0.25 degrees (KWBC)

Content-Type

application/json

{

"list": [

{

"BaseTime": "2025073000",

"ForecastTime": "2025073000",

"URL": "https://example.com/contents/faa/wafs025/kwbc/ice/FAA_WAFS025_KWBC_ICE_2025073118_036.grib2?Expires=1753855923&Signature=...&Key-Pair-Id=..."

}

]

}

GET

/faa/wafs025/kwbc/{element}

Playground

Authorization

authorizationToken

Variables

Key

Value

element*

Samples

cURL

JavaScript

PHP

Python