Multi-Day and Region Severe Weather Event

A multi-day weather event with severe storms and heavy rainfall will impact several parts of the country. Today, an enhanced risk of severe storms capable of a few strong tornadoes and wind damage are forecast across the central Gulf Coast states. Flash Flooding is also possible from the central Gulf Coast to the Ohio Valley. These threats will press eastward towards the East Coast on Friday.
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Last Update: 632 PM EDT Thu Apr 18 2019

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Philadelphia, PA Local Forecast Office

31NM SSE New York NY

Marine Zone Forecast


...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE FRIDAY NIGHT...
Synopsis: A warm front will continue shifting north of the region tonight. A strong low pressure system will track through the Ohio Valley Friday and Friday night, leading to unsettled weather with the potential for heavy rainfall. A cold front associated with this system will move through Saturday into Sunday. Weak low pressure may develop offshore by Monday with an upper level disturbance nearby. A cold front is likely to cross the region near Tuesday. High pressure should build in towards the middle of next week.

Tonight
S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Swell mainly from the SE with a dominant period of 7 seconds.
Fri
S winds 15 to 20 kt, increasing to 20 to 25 kt late. Gusts up to 30 kt. Seas 5 to 8 ft. Swell mainly from the SE with a dominant period of 7 seconds. a chance of showers in the late morning and afternoon. A chance of tstms late.
Fri Night
S winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 10 ft. Swell mainly from the SE with a dominant period of 8 seconds. tstms likely. Showers.
Sat
S winds 20 to 25 kt, diminishing to 15 to 20 kt late. Seas 9 to 12 ft. Swell mainly from the N with a dominant period of 4 seconds. tstms likely early in the morning. Showers. A chance of tstms in the late morning and early afternoon.
Sat Night
S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 7 to 10 ft, subsiding to 5 to 8 ft after midnight. Showers likely, mainly in the evening.
Sun
S winds 10 to 15 kt. Seas 5 to 7 ft. A chance of showers.
Sun Night
SW winds 5 to 10 kt, becoming W after midnight. Seas 4 to 7 ft. A chance of showers in the evening.
Mon
W winds 5 to 10 kt. Seas 4 to 6 ft.
Mon Night
W winds 5 to 10 kt. Seas 3 to 5 ft.
Tue
W winds around 5 kt, becoming S in the afternoon. Seas 3 to 4 ft.
Tue Night
S winds around 5 kt, becoming N with gusts up to 20 kt after midnight. Seas 3 to 4 ft. A chance of showers. 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: 632 PM EDT Thu Apr 18 2019
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