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18NM WSW Islip NY

[NOTICE]

Last Update: 2:30 pm EDT Apr 8, 2026
Forecast Valid: 3pm EDT Apr 8, 2026-6pm EDT Apr 15, 2026

This Afternoon

SE wind around 8 kt. Sunny. Seas 1 ft or less.

Tonight

SSE wind around 6 kt becoming variable and less than 5 kt after midnight. Clear. Seas 1 ft or less.

Thursday

SE wind 5 to 9 kt. Sunny. Seas 1 ft or less.

Thursday Night

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

Friday

Variable winds less than 5 kt becoming S 6 to 11 kt in the morning. Sunny. Seas 1 ft or less.

Friday Night

S wind 9 to 13 kt becoming SW after midnight. Mostly cloudy. Seas 1 ft or less.

Saturday

NW wind around 10 kt. Partly sunny, then gradually becoming sunny. Seas 1 ft or less.

Saturday Night

NNW wind around 6 kt becoming NNE after midnight. Mostly clear. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming SSE 5 to 8 kt in the afternoon. Mostly sunny. 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.