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15NM SW Islip NY

[NOTICE]

Last Update: 5:24 am EDT May 15, 2026
Forecast Valid: 5am EDT May 15, 2026-6pm EDT May 21, 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING

Today

NW wind 8 to 10 kt becoming WSW in the afternoon. A slight chance of showers before 11am. Seas 3 to 4 ft.

Tonight

NW wind around 6 kt becoming SW after midnight. Mostly cloudy, then gradually becoming clear. Seas around 4 ft.

Saturday

WSW wind 6 to 9 kt becoming S 12 to 15 kt in the afternoon. Sunny. Seas 3 to 4 ft.

Saturday Night

SSW wind 19 to 22 kt decreasing to 15 to 18 kt after midnight. Partly cloudy. Seas 6 ft subsiding to 4 ft.

Sunday

WSW wind 9 to 12 kt. Mostly sunny. Seas around 4 ft.

Sunday Night

SW wind 5 to 8 kt becoming SSE after midnight. Partly cloudy. Seas 3 to 4 ft.

Monday

E wind 7 to 9 kt becoming SE in the afternoon. Sunny. Seas 2 to 3 ft.

Monday Night

SSE wind around 8 kt becoming SSW after midnight. Mostly clear. Seas around 2 ft.

Tuesday

S wind 8 to 13 kt increasing to 13 to 18 kt in the afternoon. Sunny. Seas 2 ft building 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.