Accessing the service is subject to prior approval by the SADIS Manager and agreeing to our terms and conditions.
Access is based on OAUTH2 Client Credentials using Client ID and Secret to retrieve a Bearer Token. Login credentials must be set up in advance of first-time use.
Access to WAFC London's SADIS WAFS SIGWX API does NOT include reciprocal access to WAFC Washington's WIFS API service. Should you wish to access WAFC Washington's WIFS API, then you must apply directly via their website: https://aviationweather.gov/wifs/