Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Last Update: 402 AM EDT Mon Apr 13 2026

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Philadelphia, PA Local Forecast Office

35NM NNW Lewes DE

Marine Zone Forecast


Today
SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave detail: S 2 ft at 4 seconds. A slight chance of showers late.
Tonight
SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 1 to 2 ft. Wave detail: SW 2 ft at 4 seconds.
Tue
SW winds 5 to 10 kt. Seas 1 foot or less. Wave detail: SW 1 foot at 5 seconds.
Tue Night
SW winds 5 to 10 kt. Seas 1 foot or less. Wave detail: S 1 foot at 3 seconds.
Wed
SW winds 5 to 10 kt. Seas 1 foot or less. Wave detail: S 1 foot at 4 seconds.
Wed Night
SW winds 5 to 10 kt. Seas 1 foot or less. Wave detail: S 1 foot at 3 seconds.
Thu
S winds 5 to 10 kt. Seas 1 foot or less.
Thu Night
SW winds 10 to 15 kt. Seas around 2 ft.
Fri
W winds 5 to 10 kt. Seas 1 foot or less.
Fri Night
NW winds around 5 kt. Seas 1 foot or less.



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402 AM EDT Mon Apr 13 2026
 
 

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