Heavy rain and severe weather possible from the northern/central Plains to the Upper Midwest

Heavy rainfall and severe thunderstorms are expected across portions of the northern and central Plains, pushing eastward into the Upper Midwest by Wednesday. These severe thunderstorms may be capable of producing large hail and damaging winds, and possibly some tornadoes.
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Last Update: 334 PM EDT Tue Jun 27 2017

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Philadelphia, PA Local Forecast Office

8NM SE Atlantic City NJ

Marine Zone Forecast


Synopsis: High pressure over the Ohio Valley will build east across the mid- Atlantic region through Wednesday. The high pressure will move offshore for Thursday and Friday, returning our area to southwest flow. Another weak cold front is expected this weekend, bringing a chance of showers through early next week.

Tonight
SW winds 5 to 10 kt, becoming NW 10 to 15 kt after midnight. Waves 2 ft or less. Mainly in SE swell with a dominant period of 9 seconds. A slight chance of showers and tstms this evening.
Wed
NW winds 10 to 15 kt, diminishing to 5 to 10 kt late in the morning, then becoming SW early in the afternoon, increasing to 10 to 15 kt late. Waves 2 ft or less. Mainly in SE swell with a dominant period of 9 seconds.
Wed Night
SW winds 10 to 15 kt. Waves 2 ft or less. Mainly in SE swell with a dominant period of 9 seconds.
Thu
SW winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Waves 2 ft or less, then 3 to 5 ft in the late morning and afternoon. Mainly in S swell with a dominant period of 7 seconds.
Thu Night
SW winds 15 to 20 kt. Seas 4 to 6 ft.
Fri
SW winds 15 to 20 kt. Seas 3 to 5 ft.
Fri Night
SW winds 15 to 20 kt. Seas 3 to 5 ft.
Sat
S winds 10 to 15 kt. Seas 3 to 4 ft.
Sat Night
SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms.
Sun
SW winds 10 to 15 kt. Seas around 3 ft in the morning, then 2 ft or less. A chance of showers and tstms.
Sun Night
SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 3 ft. A chance of showers and tstms in the evening. 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: 334 PM EDT Tue Jun 27 2017
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