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15NM SW Islip NY

[NOTICE]

Last Update: 2:21 pm EDT May 13, 2026
Forecast Valid: 5pm EDT May 13, 2026-6pm EDT May 20, 2026

...GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING...

Tonight

S wind 19 to 24 kt decreasing to 12 to 17 kt. Winds could gust as high as 31 kt. Showers, mainly after 1am. Seas 7 ft subsiding to 3 ft.

Thursday

SE wind 6 to 8 kt becoming SW in the afternoon. Showers and possibly a thunderstorm before 11am, then a chance of showers. Seas around 3 ft.

Thursday Night

WNW wind 7 to 11 kt. A chance of showers, mainly after 11pm. Seas around 3 ft.

Friday

WNW wind 7 to 10 kt. A chance of showers before 2pm. Seas around 4 ft.

Friday Night

WNW wind around 6 kt becoming ESE in the evening. Partly cloudy. Seas around 4 ft.

Saturday

SW wind 7 to 10 kt becoming S 13 to 16 kt in the afternoon. Sunny. Seas around 3 ft.

Saturday Night

SW wind 14 to 17 kt decreasing to 10 to 13 kt after midnight. Partly cloudy. Seas 4 to 5 ft.

Sunday

SW wind 7 to 10 kt. Mostly sunny. Seas around 3 ft.

Sunday Night

SW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 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.