Last Update: 1111 AM EDT Wed Apr 16 2025

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New York, NY Local Forecast Office

17NM SE Islip NY

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

This Afternoon
W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft, occasionally to 9 ft. Wave detail: SW 6 ft at 7 seconds and SE 2 ft at 9 seconds.
Tonight
NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft, occasionally to 8 ft. Wave detail: SW 4 ft at 6 seconds and E 1 ft at 9 seconds.
Thu
W winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft, occasionally to 5 ft. Wave detail: W 3 ft at 5 seconds and S 2 ft at 8 seconds.
Thu Night
W winds 10 to 15 kt, becoming NW around 5 kt after midnight. Seas 2 to 3 ft. Wave detail: W 2 ft at 4 seconds and S 1 ft at 8 seconds.
Fri
SW winds 5 to 10 kt, becoming S 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 1 ft or less, then 2 to 4 ft, occasionally to 5 ft in the afternoon. Wave detail: S 1 ft at 5 seconds and SE 1 ft at 8 seconds, becoming S 4 ft at 5 seconds and SE 1 ft at 9 seconds.
Fri Night
S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft, occasionally to 8 ft, building to 6 to 8 ft, occasionally to 10 ft after midnight. Wave detail: S 6 ft at 6 seconds, becoming S 7 ft at 7 seconds.
Sat
SW winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 8 ft, occasionally to 10 ft.
Sat Night
SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft, occasionally to 9 ft.
Sun
W winds 10 to 15 kt. Seas 4 to 5 ft, occasionally to 6 ft.
Sun Night
NW winds around 10 kt. Seas 3 to 4 ft, occasionally to 5 ft.



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1111 AM EDT Wed Apr 16 2025
 
 

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