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15NM SW Islip NY

[NOTICE]

Last Update: 7:04 am EDT Mar 12, 2026
Forecast Valid: 11am EDT Mar 12, 2026-6pm EDT Mar 18, 2026

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

Today

NW wind 17 to 20 kt, with gusts as high as 28 kt. Snow, possibly mixed with rain. Seas around 4 ft.

Tonight

WNW wind 14 to 16 kt, with gusts as high as 23 kt. Snow, possibly mixed with rain before 8pm. Seas around 4 ft.

Friday

W wind 7 to 10 kt becoming S 16 to 21 kt. Winds could gust as high as 27 kt. Increasing clouds. Seas 3 to 4 ft.

Friday Night

SSW wind 21 to 24 kt becoming WSW after midnight. Winds could gust as high as 31 kt. Partly cloudy. Seas 7 to 8 ft.

Saturday

W wind 20 to 23 kt decreasing to 16 to 19 kt in the afternoon. Winds could gust as high as 29 kt. Sunny. Seas 7 ft subsiding to 5 ft.

Saturday Night

W wind 8 to 11 kt becoming N after midnight. Increasing clouds. Seas 2 to 3 ft.

Sunday

E wind 12 to 16 kt. Cloudy. Seas 2 to 3 ft.

Sunday Night

SE wind 19 to 23 kt, with gusts as high as 29 kt. Rain. Seas 4 ft building to 6 ft.

Monday

S wind 24 to 26 kt, with gusts as high as 35 kt. Rain. Seas 8 ft building to 10 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.