Last Update: 539 AM EDT Wed Jul 22 2026

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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...

Today
SW winds 15 to 20 kt. Seas 5 to 7 ft, occasionally to 9 ft. Wave detail: S 7 ft at 8 seconds. Chance of showers and slight chance of tstms early this morning, then slight chance of showers and tstms late this morning and afternoon.
Tonight
W winds 10 to 15 kt, becoming N after midnight. Seas 4 to 6 ft, occasionally to 8 ft. Wave detail: S 6 ft at 9 seconds. Slight chance of showers and tstms in the evening.
Thu
N winds 10 to 15 kt, becoming NE 5 to 10 kt in the afternoon. Seas 4 to 5 ft, occasionally to 6 ft. Wave detail: S 5 ft at 8 seconds.
Thu Night
SE winds around 5 kt, becoming NE after midnight. Seas 3 to 4 ft, occasionally to 5 ft. Wave detail: S 4 ft at 8 seconds.
Fri
E winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: SE 3 ft at 7 seconds.
Fri Night
E winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: SE 3 ft at 9 seconds.
Sat
E winds 5 to 10 kt. Seas around 3 ft.
Sat Night
E winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft.
Sun
E winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft.
Sun Night
SW winds around 10 kt. Seas around 3 ft.

winds and seas may be higher in and near tstms.




Winds and seas may be higher in and near tstms.
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539 AM EDT Wed Jul 22 2026
 
 

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