Heavy precipitation for parts of the Pacific Northwest

Moisture will continue to stream into the Pacific Northwest for the next several days. Heavy rain will continue along the coast, while heavy snow will impact the highest elevations of the Cascades. In the northern Plains and Upper Great Lakes, more arctic air will bring periods of snow, blustery winds and cold wind chills. Light snow is also possible in New England and the Ohio Valley.
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Hazardous Weather Conditions

Last Update: 334 PM AKST Tue Nov 21 2017

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Anchorage, AK Local Forecast Office

48NM SW Shumagin Islands AK

Marine Zone Forecast

...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT...

Synopsis: A 999 mb low 180 nm West of Attu moves over the Yukon Delta at 968 mb Wed night then shifts to 110 nm South of Kodiak City at 983 mb Thu afternoon. The associated front pushes across the Bering and over the Alaska Peninsula by Thu afternoon. High pressure edges into the Central Aleutians by Thu afternoon.

Tonight
N wind 30 kt diminishing to 20 kt after midnight. Seas 9 ft.
Wed
SW wind 25 kt increasing to 40 kt in the afternoon. Seas 5 ft building to 14 ft in the afternoon. From the shumagin islands E, W wind 15 kt becoming SW 30 kt in the afternoon, seas 6 ft. Rain.
Wed Night
W wind 35 kt increasing to 45 kt after midnight. Seas 13 ft building to 20 ft after midnight. Rain showers.
Thu
NW wind 60 kt. Seas 29 ft.
Thu Night
NW wind 55 kt. Seas 27 ft.
Fri
NW wind 45 kt. Seas 16 ft.
Sat
W wind 30 kt. Seas 10 ft.
Sun
Variable wind 10 kt. Seas 7 ft.
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ABOUT THIS FORECAST

Last Update: 334 PM AKST Tue Nov 21 2017
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