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18NM WSW Islip NY

[NOTICE]

Last Update: 2:44 am EDT May 15, 2026
Forecast Valid: 4am EDT May 15, 2026-6pm EDT May 21, 2026

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

Friday

NW wind 7 to 11 kt becoming W in the afternoon. Partly sunny. Seas 1 ft or less.

Friday Night

NNW wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Mostly cloudy, then gradually becoming clear. Seas 1 ft or less.

Saturday

WSW wind 5 to 8 kt becoming S 10 to 13 kt in the afternoon. Sunny. Seas 1 ft or less.

Saturday Night

SSW wind 15 to 18 kt decreasing to 11 to 14 kt after midnight. Partly cloudy. Seas 1 ft or less.

Sunday

W wind 7 to 10 kt. Mostly sunny. Seas 1 ft or less.

Sunday Night

SW wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 1 ft or less.

Monday

E wind 5 to 9 kt becoming SE in the afternoon. Sunny. Seas 1 ft or less.

Monday Night

SSE wind around 6 kt becoming SSW after midnight. Mostly clear. Seas 1 ft or less.

Tuesday

S wind 5 to 8 kt increasing to 10 to 13 kt in the afternoon. Sunny. Seas 1 ft or less.

*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.