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15NM SW Islip NY

[NOTICE]

Last Update: 5:03 am EDT Apr 5, 2026
Forecast Valid: 5am EDT Apr 5, 2026-6pm EDT Apr 11, 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

Today

S wind 17 to 20 kt becoming SSW 22 to 25 kt in the morning. Rain and thunderstorms. Areas of fog before noon. Seas 4 ft building to 7 ft.

Tonight

WSW wind around 15 kt becoming NW after midnight. Rain likely before 8pm. Seas around 5 ft.

Monday

WNW wind 13 to 15 kt becoming WSW in the afternoon. Sunny. Seas around 4 ft.

Monday Night

WSW wind 9 to 11 kt. A slight chance of rain. Seas 2 to 3 ft.

Tuesday

W wind 15 to 19 kt. Mostly sunny. Seas around 3 ft.

Tuesday Night

NW wind 14 to 18 kt becoming N after midnight. Mostly clear. Seas 2 to 3 ft.

Wednesday

NNE wind 6 to 10 kt becoming SE in the afternoon. Sunny. Seas 1 to 2 ft.

Wednesday Night

S wind around 10 kt. Mostly clear. Seas around 2 ft.

Thursday

SSE wind 10 to 12 kt. Mostly sunny. Seas around 2 ft.

Winds and seas may be higher in and near tstms.

*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.