Briefing for Flash Flood, Severe Thunderstorm, and Heat Risks through Thursday

Scattered showers and thunderstorms with locally heavy rainfall may lead to areas of flash flooding through tonight. There is potential for isolated severe thunderstorms with damaging wind gusts tonight and Thursday. Hot and very humid conditions are expected Thursday. See this briefing for details on these threats. Read More >

Last Update: 402 PM EDT Wed Jul 16 2025

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Philadelphia, PA Local Forecast Office

11NM NW Fenwick Island Buoy DE

Marine Zone Forecast


Tonight
SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave detail: SE 4 ft at 7 seconds. A slight chance of showers and tstms this evening, then a chance of showers and tstms after midnight.
Thu
SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave detail: S 4 ft at 6 seconds. A chance of showers and tstms in the morning.
Thu Night
SW winds 10 to 15 kt. Seas 2 to 4 ft. Wave detail: S 3 ft at 6 seconds.
Fri
NW winds around 10 kt, diminishing to around 5 kt in the afternoon. Seas 2 to 3 ft. Wave detail: W 3 ft at 6 seconds.
Fri Night
NW winds around 5 kt. Seas around 2 ft. Wave detail: NW 2 ft at 6 seconds and SE 2 ft at 7 seconds.
Sat
E winds around 5 kt. Seas around 2 ft. Wave detail: SE 2 ft at 7 seconds. A chance of showers in the afternoon.
Sat Night
S winds 5 to 10 kt. Seas around 2 ft. A chance of showers and tstms.
Sun
SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers and tstms.
Sun Night
W winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. A chance of tstms in the evening. A chance of showers.
Mon
NE winds around 10 kt. Seas around 2 ft.
Mon Night
E winds 5 to 10 kt. Seas 2 to 3 ft.

winds and seas higher in and near tstms.




Winds and seas higher in and near tstms.
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402 PM EDT Wed Jul 16 2025
 
 

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