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Heavy Rains and Associated Flooding Across the Plains This Weekend

A slow-moving weather system with abundant moisture will bring heavy rainfall across portions of the Central and Southern Plains Saturday. Soils in the region are already saturated from recent rainfall, so flash flooding and river flooding is likely. Meanwhile, below normal temperatures settle over the northeast, with freeze warnings across much of New England into Saturday.
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Last Update: 924 PM EDT FRI MAY 22 2015

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Philadelphia, PA Local Forecast Office

10NM SE Lewes DE

Marine Zone Forecast


Synopsis: HIGH PRESSURE ACROSS THE GREAT LAKES WILL BUILD EASTWARD TONIGHT REACHING OUR REGION TOMORROW. THIS AREA OF HIGH PRESSURE WILL SLIDE OFF THE COAST SUNDAY. A WARM FRONTAL BOUNDARY WILL THEN PASS NORTHWARD THROUGH OUR REGION ON MONDAY. A TROUGH OF LOW PRESSURE WILL MOVE IN BEHIND THE WARM FRONTAL PASSAGE FOR THE MIDDLE AND LATER HALF OF NEXT WEEK.

Overnight
W winds 10 to 15 kt...becoming N. Seas 2 to 3 ft. Mainly in SE swell with a dominant period of 8 seconds.
Sat
N winds 15 to 20 kt...diminishing to 10 to 15 kt with gusts up to 20 kt late in the morning...then becoming NE around 5 kt early in the afternoon... Becoming SE late. Seas 2 to 3 ft. Mainly in E swell with a dominant period of 8 seconds.
Sat Night
SW winds 5 to 10 kt. Seas around 2 ft. Mainly in NE swell with a dominant period of 5 seconds.
Sun
SW winds 5 to 10 kt...becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Mainly in E swell with a dominant period of 8 seconds.
Sun Night
SW winds 10 to 15 kt. Seas 2 to 3 ft.
Mon
S winds 10 to 15 kt. Seas 2 to 3 ft.
Mon Night
SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft.
Tue
SW winds 15 to 20 kt. Seas 3 to 4 ft.
Wed
SW winds 10 to 15 kt. Seas 3 to 4 ft.
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ABOUT THIS FORECAST

Last Update: 924 PM EDT FRI MAY 22 2015
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