National Weather Service United States Department of Commerce

Slow System Impacts Southern California and Southwest; Severe Weather Threats Over The East

A slow moving storm system will deliver heavy mountain snow and rainfall to southern California and the Desert Southwest through late week. The locally heavy rainfall may pose a flash flood risk, especially to burn scar locations. Severe thunderstorms capable of damaging winds, large hail, and isolated tornadoes will be possible from the Great Lakes and Ohio Valley into the Mid-Atlantic today. Read More >

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Last Map Update: Tue, Apr. 7, 2020 at 11:54:17 am MDT

National Weather Service Spokane, WAZoom
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National Weather Service Great Falls, MT
National Weather Service Pendleton, ORNational Weather Service Boise, IDNational Weather Service Pocatello, ID

Above normal temperatures will be the rule this week across the Northern Rockies. Highs are expected to reach the 60s and 70s by Thursday. There is a brief period of snow that will affect Marias Pass Tuesday night. With the warmer temperatures, there will be a slight increase in river levels by the end of the week. A big change back to wintry conditions is possible by Saturday as a cold Canadian air mass infiltrates western Montana. This will bring cold and wet conditions which could be a threat to newborn livestock and also to sensitive vegetation. Possible valley snow with gusty easterly winds are also in the works. The worst travel conditions will be near the Continental Divide and temperatures could be as much as 10 to 15 degrees below normal in those areas.

 

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