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15NM SW Islip NY

[NOTICE]

Last Update: 4:35 pm EDT Apr 12, 2026
Forecast Valid: 6pm EDT Apr 12, 2026-6pm EDT Apr 19, 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH

Tonight

S wind 11 to 14 kt. Mostly cloudy. Seas 3 to 4 ft.

Monday

SSW wind 17 to 19 kt. Mostly cloudy. Seas 4 to 5 ft.

Monday Night

SW wind 15 to 18 kt decreasing to 11 to 14 kt after midnight. Partly cloudy. Seas 4 to 5 ft.

Tuesday

WSW wind 8 to 13 kt becoming S in the afternoon. Mostly sunny. Seas around 3 ft.

Tuesday Night

SSW wind 15 to 18 kt decreasing to 11 to 14 kt after midnight. A slight chance of showers before 2am. Seas 3 to 4 ft.

Wednesday

SW wind 9 to 14 kt. Mostly sunny. Seas around 3 ft.

Wednesday Night

SW wind 9 to 13 kt. A chance of showers before 2am. Seas around 3 ft.

Thursday

WSW wind 10 to 14 kt becoming S in the afternoon. Partly sunny. Seas around 3 ft.

Thursday Night

SSW wind 14 to 17 kt decreasing to 11 to 14 kt after midnight. Mostly cloudy. Seas 3 to 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.