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18NM WSW Islip NY

[NOTICE]

Last Update: 6:54 pm EDT Jul 22, 2026
Forecast Valid: 10pm EDT Jul 22, 2026-6pm EDT Jul 29, 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT THURSDAY...

Tonight

NW wind around 9 kt becoming N after midnight. Partly cloudy. Seas 1 ft or less.

Thursday

N wind 5 to 8 kt becoming S in the afternoon. Sunny. Seas 1 ft or less.

Thursday Night

SSE wind around 6 kt becoming variable and less than 5 kt in the evening. Clear. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming SE 5 to 9 kt in the afternoon. Sunny. Seas 1 ft or less.

Friday Night

SE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

Saturday

NE wind 5 to 10 kt becoming ESE in the afternoon. Sunny. Seas 1 ft or less.

Saturday Night

SE wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming SSE 5 to 9 kt in the morning. Mostly sunny. Seas 1 ft or less.

Sunday Night

S wind 5 to 8 kt becoming SW after midnight. Partly cloudy. 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.