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15NM SW Islip NY

[NOTICE]

Last Update: 1:21 am EST Nov 25, 2025
Forecast Valid: 3am EST Nov 25, 2025-6pm EST Dec 1, 2025

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

Tuesday

SSW wind 11 to 14 kt becoming S in the afternoon. Rain likely, mainly after 4pm. Seas 2 to 3 ft.

Tuesday Night

SSE wind 15 to 18 kt becoming S 19 to 22 kt after midnight. Rain, mainly before 4am. Seas 3 ft building to 5 ft.

Wednesday

SSW wind around 15 kt. Rain. Seas around 4 ft.

Wednesday Night

SW wind 15 to 20 kt becoming W 23 to 28 kt. A slight chance of rain before 1am. Seas 4 ft building to 6 ft.

Thanksgiving Day

W wind around 27 kt, with gusts as high as 34 kt. Mostly sunny. Seas around 6 ft.

Thursday Night

W wind 29 to 33 kt. Mostly clear. Seas 6 to 7 ft.

Friday

W wind 30 to 33 kt. Mostly sunny. Seas 6 to 7 ft.

Friday Night

WNW wind 27 to 30 kt decreasing to 24 to 27 kt after midnight. Mostly clear. Seas 6 ft subsiding to 4 ft.

Saturday

WNW wind 17 to 20 kt decreasing to 11 to 14 kt in the afternoon. Sunny. Seas 4 ft subsiding to 2 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.