For More Weather Information:

19NM WSW Islip NY

[NOTICE]

Last Update: 6:34 pm EDT Apr 18, 2026
Forecast Valid: 6pm EDT Apr 18, 2026-6pm EDT Apr 25, 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH

Tonight

SE wind 8 to 12 kt. A chance of showers after 5am. Patchy fog after 8pm. Seas around 2 ft.

Sunday

SSE wind 8 to 11 kt becoming NW 14 to 17 kt in the morning. Winds could gust as high as 24 kt. Showers. Patchy fog before 8am. Seas around 2 ft.

Sunday Night

WNW wind 8 to 10 kt. Partly cloudy. Seas around 2 ft.

Monday

NW wind around 11 kt. A slight chance of showers. Seas around 2 ft.

Monday Night

NNW wind 12 to 14 kt. Mostly clear. Seas around 2 ft.

Tuesday

N wind 6 to 10 kt becoming SSW in the afternoon. Sunny. Seas around 1 ft.

Tuesday Night

S wind around 16 kt. Increasing clouds. Seas 2 to 3 ft.

Wednesday

SSW wind 11 to 13 kt. Mostly cloudy. Seas around 3 ft.

Wednesday Night

WNW wind 8 to 10 kt becoming N in the evening. Partly cloudy. 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.