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15NM SW Islip NY

[NOTICE]

Last Update: 4:00 am EDT Mar 17, 2026
Forecast Valid: 6am EDT Mar 17, 2026-6pm EDT Mar 23, 2026

...GALE WARNING IN EFFECT UNTIL 11 AM EDT THIS MORNING...

Today

W wind 20 to 25 kt, with gusts as high as 36 kt. Mostly sunny. Seas 11 ft subsiding to 8 ft.

Tonight

WNW wind 15 to 20 kt, with gusts as high as 26 kt. A chance of flurries before 11pm. Seas 6 to 7 ft.

Wednesday

NW wind 8 to 11 kt becoming WNW 5 to 8 kt in the afternoon. Mostly sunny. Seas 4 to 5 ft.

Wednesday Night

S wind 6 to 9 kt. Partly cloudy. Seas around 4 ft.

Thursday

S wind 7 to 10 kt. Mostly sunny. Seas around 4 ft.

Thursday Night

S wind around 9 kt becoming SSW after midnight. Partly cloudy. Seas 3 to 4 ft.

Friday

W wind 7 to 11 kt becoming SW in the afternoon. Partly sunny. Seas around 3 ft.

Friday Night

SSW wind 14 to 16 kt. A chance of rain. Seas around 4 ft.

Saturday

W wind 16 to 18 kt becoming SW in the afternoon. A chance of rain. 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.