Unsettled Weather Continues in the Northwest; Ice & Snow to Develop Across Parts of the Central U.S.

Unsettled weather will persist across the western U.S. during the next few days with locally heavy coastal rain and mountain snow for much of the Pacific Northwest. Another weather system will affect parts of the Southwest and central United States with snow and mixed precipitation developing from Oklahoma northeastward into the Great Lakes.
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Last Update: 626 PM EST Tue Jan 21 2020

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Philadelphia, PA Local Forecast Office

11NM NW Fenwick Island Buoy DE

Marine Zone Forecast


Synopsis: High pressure will remain over the region through Thursday night. On Friday, the high will start to shift offshore. A storm system will affect the area over the weekend as an area of low pressure tracks into the Great Lakes Friday night with a secondary low developing along the coast by Saturday. That storm system will move away on Sunday. High pressure is likely to build back in for the start of next week.

Tonight
N winds around 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Swell mainly from the SE with a dominant period of 8 seconds.
Wed
N winds 10 to 15 kt. Gusts up to 20 kt early in the morning. Seas around 3 ft in the morning, then 2 ft or less, then around 3 ft early in the afternoon. Swell mainly from the SE with a dominant period of 8 seconds.
Wed Night
NE winds 5 to 10 kt. Seas 2 ft or less. Swell mainly from the NE with a dominant period of 6 seconds.
Thu
NE winds 5 to 10 kt. Seas around 3 ft. Swell mainly from the E with a dominant period of 7 seconds.
Thu Night
NE winds around 5 kt. Seas 3 to 4 ft.
Fri
NE winds 5 to 10 kt. Seas 4 to 6 ft.
Fri Night
E winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 4 to 7 ft. A chance of rain in the evening, then rain likely after midnight.
Sat
SE winds around 20 kt, becoming S in the afternoon. Gusts up to 25 kt. Seas 5 to 8 ft. Rain.
Sat Night
W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of rain in the evening.
Sun
W winds around 20 kt with gusts up to 30 kt. Seas 4 to 6 ft.
Sun Night
NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 4 ft.
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Last Update: 626 PM EST Tue Jan 21 2020
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