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Hazardous Weather Conditions

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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Today

      Today:Variable winds less than 5 kt becoming S 6 to 11 kt in the afternoon. A slight chance of showers after noon. Seas around 1 ft.

      ⇑S 11kt
      1ft

    • Tonight

      Tonight:S wind 16 to 18 kt, with gusts as high as 24 kt. A chance of showers and thunderstorms, mainly after 5am. Seas around 2 ft.

      S 18kt
      2ft

    • Thursday

      Thursday:WNW wind 16 to 20 kt, with gusts as high as 27 kt. Showers likely, mainly before 11am. Seas around 2 ft.

      WNW 20kt
      2ft

    • Thursday Night

      Thursday Night:WNW wind 9 to 14 kt, with gusts as high as 20 kt. Mostly cloudy, then gradually becoming mostly clear. Seas 1 to 2 ft.

      WNW 14kt
      1-2ft

    • Friday

      Friday:WSW wind 6 to 9 kt becoming S 16 to 21 kt. Winds could gust as high as 28 kt. Increasing clouds. Seas 1 to 2 ft.

      ⇑S 21kt
      1-2ft

    • Friday Night

      Friday Night:S wind 21 to 25 kt becoming WSW after midnight. Winds could gust as high as 31 kt. Mostly cloudy, then gradually becoming mostly clear. Seas around 2 ft.

      S 25kt
      2ft

    • Saturday

      Saturday:W wind 15 to 19 kt, with gusts as high as 25 kt. Sunny. Seas around 2 ft.

      W 19kt
      2ft

    • Saturday Night

      Saturday Night:NW wind 6 to 11 kt becoming N after midnight. Mostly cloudy. Seas around 1 ft.

      NW 11kt
      1ft

    • Sunday

      Sunday:ENE wind 7 to 12 kt becoming ESE in the afternoon. Cloudy. Seas around 1 ft.

      ESE 12kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 9:48 am EDT Mar 11, 2026
Forecast Valid: 11am EDT Mar 11, 2026-6pm EDT Mar 17, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH

Today
Variable winds less than 5 kt becoming S 6 to 11 kt in the afternoon. A slight chance of showers after noon. Seas around 1 ft.
Tonight
S wind 16 to 18 kt, with gusts as high as 24 kt. A chance of showers and thunderstorms, mainly after 5am. Seas around 2 ft.
Thursday
WNW wind 16 to 20 kt, with gusts as high as 27 kt. Showers likely, mainly before 11am. Seas around 2 ft.
Thursday Night
WNW wind 9 to 14 kt, with gusts as high as 20 kt. Mostly cloudy, then gradually becoming mostly clear. Seas 1 to 2 ft.
Friday
WSW wind 6 to 9 kt becoming S 16 to 21 kt. Winds could gust as high as 28 kt. Increasing clouds. Seas 1 to 2 ft.
Friday Night
S wind 21 to 25 kt becoming WSW after midnight. Winds could gust as high as 31 kt. Mostly cloudy, then gradually becoming mostly clear. Seas around 2 ft.
Saturday
W wind 15 to 19 kt, with gusts as high as 25 kt. Sunny. Seas around 2 ft.
Saturday Night
NW wind 6 to 11 kt becoming N after midnight. Mostly cloudy. Seas around 1 ft.
Sunday
ENE wind 7 to 12 kt becoming ESE in the afternoon. Cloudy. Seas around 1 ft.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 40.91°N 73.39°W
Last Update: 9:48 am EDT Mar 11, 2026
Forecast Valid: 11am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
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