Significant Snowfall for Washington Cascades and Northern Rocky Mountains

A cold front will linger for several days from the Pacific Northwest to portions of the northern Plains early this week. Cold temperatures and copious moisture will combine to produce several feet of snow into the mountain passes, with up to 4 feet of snow down to 4000 feet in the northern Rockies. Travel through mountain passes will be very difficult.
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Hazardous Weather Conditions

Last Update: 253 PM AKST Sun Dec 17 2017

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Anchorage, AK Local Forecast Office

115NM W Saint Matthew Island AK

Marine Zone Forecast

...GALE WARNING THROUGH MONDAY NIGHT...

Synopsis: A 961 mb low 250 nm north of Attu deepens to 945 mb 415 nm north of Attu Mon morning then shifts to 50 nm west of Gambell at 969 mb for Tue afternoon. The associated fronts sweep the Bering and Aleutians through Tue afternoon. A 983 mb low moves to 415 nm southwest of Attu by Tue afternoon.

Tonight
Wind SE wind 45 kt. Seas 24 ft. Rain and snow.
Mon
S wind 45 kt E of saint matthew island...S 35 kt W of saint matthew island. Seas 23 ft. Rain.
Mon Night
S wind 40 kt. Seas 27 ft.
Tue
SW wind 40 kt. Seas 31 ft.
Tue Night
SW wind 35 kt. Seas 26 ft.
Wed
S wind 35 kt. Seas 27 ft.
Thu
SE wind 30 kt. Seas 22 ft.
Fri
S wind 15 kt. Seas 11 ft.
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ABOUT THIS FORECAST

Last Update: 253 PM AKST Sun Dec 17 2017
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