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15NM SW Islip NY

[NOTICE]

Last Update: 2:21 pm EDT May 23, 2026
Forecast Valid: 8pm EDT May 23, 2026-6pm EDT May 30, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT...

Tonight

E wind 20 to 24 kt. Rain. Seas 5 ft building to 7 ft.

Sunday

E wind 23 to 26 kt decreasing to 18 to 21 kt in the afternoon. Winds could gust as high as 32 kt. Rain. Seas around 8 ft.

Sunday Night

SE wind 7 to 10 kt becoming WSW after midnight. Rain likely. Seas 6 to 7 ft.

Memorial Day

Variable winds less than 5 kt becoming WSW 5 to 7 kt in the afternoon. Showers likely, mainly before 8am. Seas around 5 ft.

Monday Night

SSW wind around 6 kt becoming variable and less than 5 kt after midnight. Cloudy. Seas around 4 ft.

Tuesday

Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. Mostly cloudy. Seas around 3 ft.

Tuesday Night

WSW wind around 8 kt. Mostly cloudy. Seas around 3 ft.

Wednesday

W wind 6 to 9 kt becoming SW 9 to 12 kt in the afternoon. Mostly cloudy. Seas around 3 ft.

Wednesday Night

SW wind 9 to 11 kt becoming WNW after midnight. Mostly cloudy. Seas 2 to 3 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.