Potential for Severe Weather and Heavy Rain in the South this Weekend

A low pressure system moving across the southern Gulf States will bring a threat of isolated severe thunderstorms containing hail and damaging winds this weekend. Fire Weather threats remain elevated for portions of western Texas and along the New Mexico border on Saturday. Cooler than normal temperatures continue in the east, while above normal temperatures are forecast for the west coast.
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Last Update: 930 PM EDT Fri Apr 20 2018

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Philadelphia, PA Local Forecast Office

10NM SE Lewes DE

Marine Zone Forecast


Synopsis: High pressure builds over our area tonight, remains in place through the weekend, then shifts offshore Monday. Low pressure moves east across the Gulf Coast states Sunday and Monday, then tracks up the Mid-Atlantic coast later Tuesday through late Wednesday. High pressure then builds well to our west and south later Thursday and Friday.

Overnight
N winds 10 to 15 kt. Gusts up to 20 kt. Seas around 3 ft late this evening, then 2 ft or less. Swell mainly from the N with a dominant period of 5 seconds.
Sat
N winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt early in the afternoon, then becoming SW late. Seas around 3 ft early in the morning, then 2 ft or less. Swell mainly from the N with a dominant period of 5 seconds.
Sat Night
SW winds 5 to 10 kt, becoming N late. Seas 2 ft or less. Swell mainly from the E with a dominant period of 7 seconds.
Sun
NE winds 5 to 10 kt, becoming SE late. Seas 2 ft or less. Swell mainly from the SE with a dominant period of 9 seconds.
Sun Night
S winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 ft or less.
Mon
NE winds around 5 kt, becoming E in the afternoon. Seas 2 ft or less.
Mon Night
E winds around 10 kt. Seas 2 ft or less.
Tue
E winds 10 to 15 kt. Seas 3 to 4 ft.
Tue Night
E winds 15 to 20 kt. Seas 3 to 5 ft, building to 5 to 8 ft after midnight. Rain.
Wed
E winds 15 to 20 kt, becoming SE 10 to 15 kt in the afternoon. Seas 6 to 9 ft. Rain.
Wed Night
SW winds around 5 kt, becoming W after midnight. Seas 5 to 8 ft. A chance of rain in the evening, then a chance of showers after midnight.
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Last Update: 930 PM EDT Fri Apr 20 2018
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