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15NM SW Islip NY

[NOTICE]

Last Update: 6:17 pm EST Jan 18, 2026
Forecast Valid: 7pm EST Jan 18, 2026-6pm EST Jan 25, 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST MONDAY THROUGH

Tonight

NNE wind 11 to 16 kt becoming NW after midnight. Rain and snow before 11pm, then a chance of snow between 11pm and 1am. Seas 3 to 4 ft.

M.L.King Day

WSW wind 16 to 21 kt. Patchy freezing spray before 9am. Mostly cloudy through mid morning, then becoming sunny. Seas 4 to 5 ft.

Monday Night

W wind 24 to 29 kt. Patchy freezing spray after midnight. Mostly clear. Seas 6 to 7 ft.

Tuesday

W wind around 24 kt. Patchy freezing spray. Sunny. Seas 5 to 6 ft.

Tuesday Night

W wind 17 to 20 kt decreasing to 13 to 16 kt after midnight. Patchy freezing spray before 3am. Clear. Seas 3 to 4 ft.

Wednesday

W wind 11 to 14 kt becoming SSW 17 to 20 kt in the afternoon. Mostly sunny. Seas 2 ft building to 4 ft.

Wednesday Night

SW wind 22 to 25 kt decreasing to 19 to 22 kt after midnight. Mostly cloudy. Seas 5 to 6 ft.

Thursday

SW wind 17 to 20 kt. A chance of rain. Seas 4 to 5 ft.

Thursday Night

WNW wind 21 to 23 kt. Partly cloudy. Seas 4 to 5 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.