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18NM WSW Islip NY

[NOTICE]

Last Update: 2:28 pm EDT Mar 30, 2026
Forecast Valid: 3pm EDT Mar 30, 2026-6pm EDT Apr 6, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON...

This Afternoon

SW wind around 16 kt, with gusts as high as 24 kt. A slight chance of showers. Seas 1 ft or less.

Tonight

SSW wind 13 to 16 kt. A chance of showers, mainly after 2am. Seas 1 ft or less.

Tuesday

SW wind 12 to 17 kt. A chance of showers before 2pm. Seas 1 ft or less.

Tuesday Night

SSW wind 17 to 19 kt, with gusts as high as 25 kt. Partly cloudy. Seas 1 ft or less.

Wednesday

SW wind 14 to 16 kt. A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

Wednesday Night

S wind 9 to 11 kt becoming ENE in the evening. Showers likely and possibly a thunderstorm. Seas 1 ft or less.

Thursday

ENE wind around 15 kt. A chance of showers before 2pm. Seas 1 ft or less.

Thursday Night

E wind 9 to 12 kt, with gusts as high as 20 kt. A chance of showers. Seas 1 ft or less.

Friday

SSE wind 8 to 10 kt becoming S in the morning. Mostly cloudy. 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.