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18NM WSW Islip NY

[NOTICE]

Last Update: 2:26 pm EDT May 15, 2026
Forecast Valid: 4pm EDT May 15, 2026-6pm EDT May 22, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Tonight

NW wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly cloudy, then gradually becoming clear. Seas 1 ft or less.

Saturday

WSW wind 5 to 8 kt becoming SSW 10 to 15 kt in the afternoon. Winds could gust as high as 23 kt. Sunny. Seas 1 ft or less.

Saturday Night

SW wind 18 to 23 kt decreasing to 11 to 16 kt. Winds could gust as high as 29 kt. Increasing clouds. Seas 1 ft or less.

Sunday

W wind 8 to 12 kt becoming SW in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas 1 ft or less.

Sunday Night

SSW wind 5 to 9 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 1 ft or less.

Monday

E wind 7 to 10 kt becoming SE 10 to 13 kt in the afternoon. Winds could gust as high as 21 kt. Sunny. Seas 1 ft or less.

Monday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming S 8 to 13 kt in the morning. Sunny. Seas 1 ft or less.

Tuesday Night

SSW wind 10 to 13 kt decreasing to 7 to 10 kt after midnight. Winds could gust as high as 22 kt. Mostly clear. 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.