Severe thunderstorms possible over the Mid Atlantic and Northeast U.S.

Severe thunderstorms may develop Monday afternoon and evening over portions of the Mid Atlantic and Northeast U.S. A few of the storms could contain damaging winds, large hail, and heavy rainfall. The severe weather threat will shift to the upper Midwest and Great Lakes by Tuesday and Wednesday of this week.
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Hazardous Weather Conditions

Last Update: 347 PM EDT Mon Jul 24 2017

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Philadelphia, PA Local Forecast Office

24NM SSW Atlantic City NJ

Marine Zone Forecast


Synopsis: A cold front will move slowly south across our region this evening and offshore tonight. A broad high pressure system extending from the Great Lakes into eastern Canada will gradually build southeast into our area through Wednesday. As this high slides offshore late Wednesday, a warm front will move through our region on Thursday, followed by another slow moving cold front on Friday. High pressure is expected to make a return this weekend.

Tonight
NE winds 5 to 10 kt, becoming N late. Seas 3 to 4 ft. Mainly in S swell with a dominant period of 9 seconds. a slight chance of showers and tstms early this evening, then a chance of showers late this evening and overnight.
Tue
NW winds 5 to 10 kt, becoming NE 10 to 15 kt in the late morning and afternoon. Seas 3 to 4 ft. Mainly in S swell with a dominant period of 7 seconds.
Tue Night
NE winds 10 to 15 kt. Seas 3 to 5 ft. Mainly in S swell with a dominant period of 7 seconds.
Wed
E winds 10 to 15 kt. Seas 3 to 5 ft. Mainly in SE swell with a dominant period of 6 seconds.
Wed Night
SE winds 5 to 10 kt. Seas around 3 ft.
Thu
S winds around 5 kt, increasing to around 10 kt in the afternoon. Seas 3 to 4 ft.
Thu Night
S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
Fri
SW winds 10 to 15 kt. Seas around 3 ft. A chance of showers and tstms.
Fri Night
W winds 5 to 10 kt, becoming N 10 to 15 kt after midnight. Waves 2 ft or less. A chance of showers and tstms.
Sat
NE winds 5 to 10 kt. Seas around 3 ft. A chance of showers and tstms in the morning.
Sat Night
NE winds 5 to 10 kt. Seas around 3 ft. winds and seas higher in and near tstms.

Winds and seas higher in and near tstms.
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ABOUT THIS FORECAST

Last Update: 347 PM EDT Mon Jul 24 2017
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