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15NM SW Islip NY

[NOTICE]

Last Update: 1:04 pm EST Nov 25, 2025
Forecast Valid: 2pm EST Nov 25, 2025-6pm EST Dec 1, 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EST THIS EVENING

This Afternoon

S wind around 14 kt. A chance of rain. Seas 2 to 3 ft.

Tonight

SSE wind 15 to 18 kt becoming S 20 to 23 kt after midnight. Rain. Seas 3 ft building to 5 ft.

Wednesday

SSW wind around 16 kt. Showers likely, mainly before 1pm. Seas around 4 ft.

Wednesday Night

SSW wind 15 to 20 kt becoming W 23 to 28 kt in the evening. A chance of showers, mainly before 7pm. Seas 4 ft building to 6 ft.

Thanksgiving Day

W wind around 27 kt. Mostly sunny. Seas around 6 ft.

Thursday Night

W wind 28 to 31 kt. Mostly clear. Seas 6 to 7 ft.

Friday

W wind 27 to 31 kt, with gusts as high as 38 kt. Mostly sunny. Seas around 6 ft.

Friday Night

WNW wind 23 to 28 kt. Mostly clear. Seas 4 to 5 ft.

Saturday

WNW wind 15 to 20 kt decreasing to 9 to 14 kt in the afternoon. Sunny. Seas 3 ft subsiding to 1 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.