National Weather Service United States Department of Commerce

Stormy Conditions Continue in the West; Wintry Weather to Intensify Through This Weekend In the Central and Eastern U.S.

An intense Pacific Storm will continue bringing heavy rain and flooding, strong and gusty winds, heavy snow in the mountains up to 6 feet. As the system shifts east, mountain snow will intensify in the Great Basin and Rockies. Another storm system will bring wintry conditions to the central U.S., spreading snow into the Mid-Atlantic, including the DC Metro area in time for the evening commute. Read More >

Click a location below for detailed forecast.

Last Map Update: Thu, Jan. 17, 2019 at 4:56:14 am MST

National Weather Service Spokane, WAZoom

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

Moderate to heavy snow will return to the Northern Rockies Thursday through Friday, particularly for higher elevations above 4000 feet. Moderate to heavy snow will create difficult winter travel over area mountain passes, particularly Marias, Lookout, and Lolo Passes. Snowy, slick travel will also impact MacDonald, Lost Trail, and to a lesser extent Homestake Pass as well. Valleys across the region - especially across Northwest Montana north of I-90 - will likely receive light to moderate snow accumulations.
Periodic light to moderate snow will bring continued impacts to portions of western Montana and central Idaho Sunday through Monday morning. Mountain passes, particularly Lolo Pass and Lost Trail Pass, will experience heavier snow amounts along with changeable visibilities. In the valleys, impacts will be less intense, but still noticeable: many locations may mix with rain for a time Sunday before turning back over to snow. As a result, roads could become briefly snow covered and quite slick, especially if road surfaces freeze up quickly.


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