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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Last Update: 303 PM EST Mon Feb 19 2018

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Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Zone Forecast


...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...
Synopsis: ANZ100-201015- 303 PM EST Mon Feb 19 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... High pressure will shift eastward tonight allowing a south to southwesterly flow to develop as a warm front approaches the region. The front will be in the proximity of the northern New England coastal waters on Tuesday before it lifts north on Wednesday. A cold front will cross the region late Wednesday into Wednesday evening with high pressure following for Thursday. $$

Tonight
S winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Seas 4 to 6 ft. Rain. Areas of fog.
Tue
SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Areas of fog.
Tue Night
SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Areas of fog.
Wed
SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Areas of fog in the morning.
Wed Night
W winds 10 to 15 kt, becoming NW after midnight. Gusts up to 25 kt. Seas 3 to 5 ft.
Thu
N winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft.
Thu Night
N winds 5 to 10 kt, becoming NE 10 to 15 kt after midnight. Seas 2 to 3 ft.
Fri
SE winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers.
Fri Night
SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers.
Sat
W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain.
Sat Night
N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft.
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ABOUT THIS FORECAST

Last Update: 303 PM EST Mon Feb 19 2018
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