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15NM SW Islip NY

[NOTICE]

Last Update: 2:25 am EDT Mar 29, 2026
Forecast Valid: 2pm EDT Mar 29, 2026-6pm EDT Apr 4, 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON

This Afternoon

SSW wind 16 to 18 kt. Sunny. Seas around 2 ft.

Tonight

SSW wind 20 to 24 kt. Increasing clouds. Seas around 5 ft.

Monday

SW wind around 20 kt. A slight chance of showers after 2pm. Seas 4 to 5 ft.

Monday Night

SSW wind 15 to 19 kt. A slight chance of showers before 8pm, then a slight chance of showers after 2am. Seas 4 to 5 ft.

Tuesday

SSW wind 16 to 19 kt increasing to 19 to 22 kt in the afternoon. A slight chance of showers before 2pm. Seas 4 ft building to 6 ft.

Tuesday Night

SSW wind 27 to 29 kt. Partly cloudy. Seas around 8 ft.

Wednesday

SSW wind 23 to 25 kt. A chance of showers after 2pm. Seas 7 to 8 ft.

Wednesday Night

SW wind around 19 kt becoming NNE after midnight. Rain likely. Seas 6 ft subsiding to 4 ft.

Thursday

NE wind 17 to 19 kt becoming E in the afternoon. A chance of rain. Seas around 4 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.