The Williams County Real-time Weather Radar is located at
the Williston Basin International Airport (XWA) and provides radar coverage for
northwestern North Dakota.
Construction of the radar was completed in October 2019 and
is fully operational as of March 2020; information became available to the
public in April 2020. The project was funded by revenue from Williams County’s
1% Public Safety Sales Tax.
Visualization of real-time weather radar data is provided by
the North Dakota Atmospheric Resource
Board. The radar operates 24 hours a day, 7 days a week, and the radar maps are updated every
Four data products are available for visualization: Composite
Reflectivity (Column Maximum), Base Reflectivity, Vertically Integrated Liquid
(VIL), and Velocity. The Reflectivity products are the basic indicators of
precipitation. Wondering what the colors mean? Click here for an explanation from the National Weather Service.
Raw volume data in the NEXRAD L2 data format is hosted by the Atmospheric Resource Board and downloadable via this link https://level2.swc.nd.gov/raw/. The configuration file and the GIS file for reading the data into GR Analyst are also provided at this link.
Location: Williston Basin International Airport (XWA)
Radar type: C-band, simultaneous dual-polarization Defender C350, manufactured
by Enterprise Electronics Corporation (EEC)
Tower: 60 foot steel tower constructed by Allstate Tower; tower engineering by
Utility work: Completed by Triangle Electric, Mountrail-Williams Electric
Cooperative (MWEC), and Northwest Communications Co-Op
Site engineering and support: Ulteig
County owns and operates the radar, but does not, and will not, provide weather
data interpretation, weather forecasts, or issue weather warnings. For weather
interpretation and forecast information, please visit the National Weather
or your favorite weather website.