Wintry Conditions Over The Rockies, Heavy Rainfall And Flash Flooding Threat Over The Desert Southwest

Remnant moisture from what was once Tropical Storm Raymond will continue to produce heavy rainfall and the threat for flash flooding over the Desert Southwest into Thursday. Heavy snow will also be possible over parts of the Rockies, and will likely cause hazardous travel. Meanwhile, critical fire weather conditions continue across northern California into Thursday morning.
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Last Update: 926 PM EST Wed Nov 20 2019

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Philadelphia, PA Local Forecast Office

31NM SSE New York NY

Marine Zone Forecast


...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST THURSDAY...
Synopsis: High pressure will continue building to the south of the forecast area through Thursday. Low pressure will pass from the Great Lakes toward the Canadian Maritimes Thursday through late Friday pushing a cold front across our region on Friday. Low pressure will develop across the southern Appalachians and pass just to the south of the forecast area and offshore late Saturday into early Sunday. High pressure then returns through early next week.

Overnight
NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Swell mainly from the SE with a dominant period of 9 seconds.
Thu
NW winds 15 to 20 kt with gusts up to 25 kt, diminishing to 10 to 15 kt with gusts up to 20 kt late in the morning, then becoming W 5 to 10 kt in the afternoon. Seas 3 to 4 ft until late afternoon, then 2 ft or less. Swell mainly from the E with a dominant period of 9 seconds.
Thu Night
SW winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 2 ft or less, then 3 to 4 ft after midnight. Swell mainly from the E with a dominant period of 8 seconds.
Fri
W winds 15 to 20 kt. Gusts up to 25 kt. Seas 3 to 5 ft. Swell mainly from the SE with a dominant period of 8 seconds.
Fri Night
NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft.
Sat
NW winds 10 to 15 kt, becoming W around 5 kt in the afternoon. Seas around 3 ft in the morning, then 2 ft or less.
Sat Night
SW winds 5 to 10 kt, becoming NE with gusts up to 20 kt after midnight. Seas 3 to 4 ft. Rain.
Sun
N winds 10 to 15 kt, becoming NW 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. A chance of rain.
Sun Night
NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 4 ft.
Mon
W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas around 3 ft in the morning, then 2 ft or less.
Mon Night
W winds 5 to 10 kt. Seas 2 ft or less.
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ABOUT THIS FORECAST

Last Update: 926 PM EST Wed Nov 20 2019
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