Last Update: 800 AM EDT Thu May 21 2026

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Philadelphia, PA Local Forecast Office

19NM NNE Lewes DE

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH LATE FRIDAY NIGHT...

Today
NE winds 10 to 15 kt. Gusts up to 25 kt late this morning and afternoon. Seas 1 foot or less, then 2 to 3 ft this afternoon. Wave detail: S 1 foot at 6 seconds, becoming NE 2 ft at 3 seconds and S 2 ft at 6 seconds. A slight chance of showers late this morning. A chance of showers early this afternoon, then showers likely with a slight chance of tstms late.
Tonight
NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave detail: NE 2 ft at 3 seconds and SE 1 foot at 6 seconds. Showers likely, mainly in the evening.
Fri
E winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Wave detail: NE 2 ft at 3 seconds. A chance of showers in the morning, then showers in the afternoon.
Fri Night
E winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave detail: NE 2 ft at 3 seconds. Showers.
Sat
E winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave detail: NE 2 ft at 4 seconds. Showers.
Sat Night
E winds 20 to 25 kt with gusts up to 30 kt, diminishing to 15 to 20 kt after midnight. Seas 3 to 5 ft. Wave detail: NE 2 ft at 4 seconds. A chance of tstms. Showers.
Sun
NE winds 5 to 10 kt, becoming N in the afternoon. Seas 2 to 3 ft. Showers, mainly in the morning.
Sun Night
NE winds around 5 kt. Seas 2 to 3 ft. A chance of showers after midnight.
Mon
SE winds around 5 kt. Seas around 2 ft. A chance of showers.
Mon Night
S winds around 5 kt, becoming W after midnight. Seas around 2 ft. Showers likely.

winds and seas higher in and near tstms.



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800 AM EDT Thu May 21 2026
 
 

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