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18NM WSW Islip NY

[NOTICE]

Last Update: 5:24 am EDT May 24, 2026
Forecast Valid: 7am EDT May 24, 2026-6pm EDT May 30, 2026

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

Today

E wind 18 to 21 kt decreasing to 14 to 17 kt in the afternoon. Winds could gust as high as 29 kt. Rain, mainly before 5pm. Seas 1 ft or less.

Tonight

ENE wind 5 to 10 kt. Showers, mainly after 11pm. Areas of fog after 2am. Seas 1 ft or less.

Memorial Day

SE wind around 6 kt becoming SW in the afternoon. Showers and possibly a thunderstorm, mainly before 2pm. Areas of fog before 8am. Seas 1 ft or less.

Monday Night

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

Tuesday

Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Mostly cloudy. Seas 1 ft or less.

Tuesday Night

SW wind around 6 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday

SW wind 5 to 9 kt. Partly sunny. Seas 1 ft or less.

Wednesday Night

WSW wind 5 to 7 kt becoming NW after midnight. Mostly cloudy. Seas 1 ft or less.

Thursday

N wind 5 to 8 kt becoming NW in the afternoon. Mostly sunny. Seas 1 ft or less.

Winds and seas may be higher in and near tstms.

*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.