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18NM WSW Islip NY

[NOTICE]

Last Update: 2:17 pm EDT Sep 27, 2026
Forecast Valid: 8pm EDT Sep 27, 2026-6pm EDT Oct 4, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY EVENING...

Tonight

NE wind around 17 kt. Rain and possibly a thunderstorm. Seas 1 ft or less.

Monday

NNE wind 13 to 15 kt. Rain, mainly before 2pm. Seas 1 ft or less.

Monday Night

NNW wind 8 to 11 kt. A slight chance of rain before 8pm. Seas 1 ft or less.

Tuesday

NW wind around 7 kt. Mostly sunny. Seas 1 ft or less.

Tuesday Night

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

Wednesday

Variable winds less than 5 kt becoming SW 5 to 7 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Wednesday Night

S wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

Thursday

Variable winds less than 5 kt becoming SSW 5 to 10 kt in the morning. Mostly sunny. Seas 1 ft or less.

Thursday Night

SW wind 8 to 10 kt. Partly 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.