National Weather Service United States Department of Commerce
Click a location below for detailed forecast.

Last Map Update: Thu, Mar. 22, 2018 at 2:16:21 am MDT

National Weather Service Missoula, MTNational Weather Service Great Falls, MTNational Weather Service Billings, MT
National Weather Service Boise, IDZoom

National Weather Service Western and Central Wyoming
National Weather Service Elko, NVNational Weather Service Salt Lake City, UTNational Weather Service Grand Junction, CO

FLOOD POTENTIAL INCREASING TODAY AND THURSDAY The combination of high temperatures in the 40s and 50s today and Thursday, low temperatures remaining near or above freezing, and moderate to heavy rain falling on snow will result in rapid snow-melt and the risk for flooding along small creeks, streams, and ditches. A ground that is still frozen in many areas will also promote the risk for "sheet flooding", where runoff will pool in fields and low-lying areas with nowhere to go. We expect scattered reports of flooded fields, water over roads, and some washed-out roads over the next 24 to 48 hours. Basement flooding is also possible in susceptible areas. Please prepare now. Make sure you have a way to monitor our latest forecasts, watches, warnings, and advisories. Turn around, don't drown anytime you encounter flooded roads. It can be very difficult to impossible to accurately judge the depth of the water, and the road may be damaged beneath. And please report flooding to us when you can do so safely!


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