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: 353 PM EST Mon Feb 19 2018

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New York, NY Local Forecast Office

18NM SSE Islip NY

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EST TONIGHT

Synopsis: ANZ300-200945- 353 PM EST Mon Feb 19 2018 .Synopsis for the Long Island Waters and New York Harbor... High pressure remains anchored over the western Atlantic through mid week as a slow moving frontal system approaches from the Mississippi Valley. The associated warm front will work north across the area this evening. A cold front approaches Wednesday and moves south of the area Wednesday night. A series of lows will be moving through the Northeast late this week into the weekend. $$

Tonight
SW winds 10 to 15 kt. Seas 3 to 4 ft, building to 4 to 5 ft. Rain early this evening, then light rain and drizzle likely late this evening. Patchy drizzle after midnight. Patchy fog after midnight. Vsby less than 1 nm after midnight.
Tue
SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Patchy drizzle in the morning. Patchy fog. Vsby less than 1 nm.
Tue Night
SW winds around 15 kt with gusts up to 20 kt. Seas around 4 ft. Patchy drizzle. Areas of fog. Vsby 1 to 3 nm.
Wed
SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 4 ft. Areas of fog in the morning, then patchy fog in the afternoon. Vsby 1 to 3 nm.
Wed Night
W winds 10 to 15 kt, becoming N after midnight. Seas 3 to 4 ft. Chance of showers after midnight.
Thu
NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Chance of rain.
Thu Night
NE winds 10 to 15 kt. Seas around 3 ft.
Fri
E winds 10 to 15 kt. Seas 3 to 4 ft. Chance of rain in the afternoon.
Fri Night
SE winds around 10 kt, becoming SW after midnight. Seas 3 to 4 ft. Chance of rain. Patchy fog. Vsby 1 to 3 nm.
Sat
SW winds 5 to 10 kt. Seas around 4 ft. Patchy fog in the morning. Chance of rain. Vsby 1 to 3 nm in the morning.
Sat Night
W winds 5 to 10 kt, becoming N after midnight. Seas around 4 ft. Chance of rain.
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ABOUT THIS FORECAST

Last Update: 353 PM EST Mon Feb 19 2018
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