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15NM SW Islip NY

[NOTICE]

Last Update: 6:01 pm EST Jan 21, 2026
Forecast Valid: 7pm EST Jan 21, 2026-6pm EST Jan 28, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...

Tonight

SW wind 22 to 26 kt. A slight chance of rain before 1am. Seas around 6 ft.

Thursday

WSW wind 20 to 22 kt. Mostly sunny. Seas 5 to 6 ft.

Thursday Night

W wind 17 to 20 kt. Partly cloudy. Seas 4 to 5 ft.

Friday

W wind 15 to 18 kt increasing to 20 to 23 kt in the afternoon. Partly sunny. Seas 3 to 4 ft.

Friday Night

WNW wind 22 to 25 kt becoming NNW after midnight. Mostly cloudy. Seas 4 to 5 ft.

Saturday

NNW wind 16 to 19 kt decreasing to 13 to 16 kt in the afternoon. Mostly cloudy. Seas 3 to 4 ft.

Saturday Night

N wind 12 to 17 kt becoming NNE after midnight. Snow likely after 1am. Seas around 2 ft.

Sunday

NE wind 20 to 23 kt increasing to 23 to 26 kt in the afternoon. Winds could gust as high as 33 kt. Snow. Seas 3 to 4 ft.

Sunday Night

NE wind 23 to 26 kt decreasing to 20 to 23 kt after midnight. Winds could gust as high as 34 kt. Snow. Seas 4 to 5 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.