Deep Cold Trough Meets Gulf Moisture with Significant Impacts Across the Western and Central U.S.

A deep trough and associated cold front is bringing much below normal temperatures in the west, with low elevation snows. Strong winds and widespread snow, will impact the Great Basin, western mountains, and the Plains. The slowing front, will bring prolonged waves of heavy rain across the Mississippi Valley to the Great Lakes. Significant icing forecast north of the heavy rain. Big warm up east.
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Hazardous Weather Conditions

Last Update: 359 AM AKST Mon Feb 19 2018

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Anchorage, AK Local Forecast Office

60NM ESE Shemya AK

Marine Zone Forecast

...GALE WARNING THROUGH TUESDAY...

Synopsis: A 959 mb low 250 nm north of Shemya moves over the Gulf of Anadyr this evening at 968 mb. The associated front lifts over the central Bering Tue afternoon. A 993 mb low 280 nm south of Shemya tonight moves 225 nm northeast of Shemya Tue night at 997 mb while the associated front moves over the eastern Bering.

Today
SW wind 45 kt. Seas 24 ft.
Tonight
SW wind 35 kt becoming NE 25 kt after midnight. Seas 20 ft subsiding to 15 ft after midnight.
Tue
NE wind 35 kt. Seas 14 ft. Rain.
Tue Night
NW wind 35 kt. Seas 14 ft.
Wed
S wind 30 kt. Seas 13 ft.
Thu
SW wind 30 kt. Seas 17 ft.
Fri
SW wind 25 kt. Seas 12 ft.
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ABOUT THIS FORECAST

Last Update: 359 AM AKST Mon Feb 19 2018
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