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15NM SW Islip NY

[NOTICE]

Last Update: 2:21 am EDT May 19, 2026
Forecast Valid: 1pm EDT May 19, 2026-6pm EDT May 25, 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH

This Afternoon

SSW wind 15 to 18 kt. Mostly sunny. Seas around 4 ft.

Tonight

SSW wind 18 to 21 kt decreasing to 15 to 18 kt after midnight. Partly cloudy. Seas 4 to 5 ft.

Wednesday

SSW wind 12 to 15 kt increasing to 15 to 18 kt in the afternoon. Showers and possibly a thunderstorm after 2pm. Seas around 4 ft.

Wednesday Night

WNW wind 8 to 10 kt becoming N after midnight. Showers and possibly a thunderstorm. Seas 3 to 4 ft.

Thursday

N wind 6 to 11 kt becoming ESE in the afternoon. A chance of showers before 2pm. Seas 2 to 3 ft.

Thursday Night

Variable winds 5 kt or less. Mostly cloudy. Seas around 2 ft.

Friday

ENE wind around 12 kt becoming ESE in the afternoon. A chance of showers after 2pm. Seas around 2 ft.

Friday Night

E wind 9 to 13 kt. Showers. Seas around 2 ft.

Saturday

E wind 18 to 20 kt. Showers. Seas 3 to 4 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.