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15NM SW Islip NY

[NOTICE]

Last Update: 4:40 am EST Dec 8, 2025
Forecast Valid: 9am EST Dec 8, 2025-6pm EST Dec 14, 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

Today

N wind 17 to 21 kt. Mostly cloudy. Seas 3 to 4 ft.

Tonight

NNE wind 11 to 16 kt. Mostly cloudy, then gradually becoming mostly clear. Seas 2 to 3 ft.

Tuesday

NE wind 5 to 8 kt becoming SSW 11 to 14 kt in the afternoon. Increasing clouds. Seas around 2 ft.

Tuesday Night

SW wind 22 to 26 kt. Mostly cloudy. Seas 4 to 5 ft.

Wednesday

SSW wind 21 to 24 kt increasing to 27 to 30 kt in the afternoon. Rain likely, mainly after 1pm. Seas 5 ft building to 8 ft.

Wednesday Night

SW wind 26 to 28 kt becoming W after midnight. A chance of rain before 1am. Seas 7 to 8 ft.

Thursday

WNW wind 22 to 24 kt. Mostly sunny. Seas 6 ft subsiding to 4 ft.

Thursday Night

WNW wind 18 to 20 kt. Mostly cloudy. Seas 3 to 4 ft.

Friday

W wind 18 to 20 kt. Partly sunny. Seas around 3 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.