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15NM SW Islip NY

[NOTICE]

Last Update: 7:08 am EDT Jun 30, 2026
Forecast Valid: 10am EDT Jun 30, 2026-6pm EDT Jul 6, 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON

Today

S wind 9 to 12 kt increasing to 13 to 16 kt in the afternoon. Winds could gust as high as 22 kt. Mostly sunny. Seas 2 to 3 ft.

Tonight

SW wind 16 to 21 kt, with gusts as high as 27 kt. A slight chance of showers and thunderstorms after 11pm. Seas 4 to 5 ft.

Wednesday

SSW wind 13 to 16 kt increasing to 16 to 19 kt in the afternoon. A slight chance of showers and thunderstorms after 2pm. Seas 3 to 4 ft.

Wednesday Night

SW wind 19 to 22 kt decreasing to 15 to 18 kt after midnight. A slight chance of showers and thunderstorms. Seas 4 to 5 ft.

Thursday

SSW wind 11 to 16 kt. Sunny. Seas around 3 ft.

Thursday Night

WSW wind 16 to 19 kt decreasing to 12 to 15 kt after midnight. Mostly clear. Seas 3 to 4 ft.

Friday

W wind 8 to 11 kt becoming SSW 12 to 15 kt in the afternoon. A chance of showers after 2pm. Seas 2 to 3 ft.

Friday Night

W wind 6 to 10 kt. A chance of showers. Seas 2 to 3 ft.

Independence Day

W wind 5 to 8 kt becoming SSW 9 to 12 kt in the afternoon. A chance of showers. Seas around 2 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.