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Hazardous Weather Conditions

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New York, NY Local Forecast Office

7NM S Islip NY

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:SSW wind 9 to 12 kt. Partly sunny. Seas around 1 ft.

      SSW 12kt
      1ft

    • Tonight

      Tonight:SW wind 17 to 21 kt, with gusts as high as 27 kt. Mostly cloudy. Seas 2 ft building to 4 ft.

      SW 21kt
      Waves Building4ft

    • Wednesday

      Wednesday:SSW wind 21 to 24 kt increasing to 25 to 28 kt in the afternoon. Winds could gust as high as 38 kt. Rain likely after 1pm. Seas 4 ft building to 7 ft.

      ⇑SSW 28kt
      Waves Building7ft

    • Wednesday Night

      Wednesday Night:WSW wind 23 to 26 kt becoming W after midnight. Winds could gust as high as 33 kt. A chance of rain before 1am. Seas 5 to 6 ft.

      WSW 26kt
      5-6ft

    • Thursday

      Thursday:W wind around 25 kt, with gusts as high as 35 kt. Mostly sunny. Seas around 4 ft.

      W 25kt
      4ft

    • Thursday Night

      Thursday Night:W wind 25 to 28 kt decreasing to 22 to 25 kt after midnight. Winds could gust as high as 35 kt. Partly cloudy. Seas 3 to 4 ft.

      W 28kt⇓
      3-4ft

    • Friday

      Friday:W wind 16 to 19 kt, with gusts as high as 27 kt. Mostly sunny. Seas 2 to 3 ft.

      W 19kt
      2-3ft

    • Friday Night

      Friday Night:W wind 12 to 15 kt, with gusts as high as 21 kt. Mostly cloudy. Seas around 2 ft.

      W 15kt
      2ft

    • Saturday

      Saturday:W wind 13 to 18 kt, with gusts as high as 26 kt. Mostly cloudy. Seas 2 to 3 ft.

      W 18kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 1:17 pm EST Dec 9, 2025
Forecast Valid: 1pm EST Dec 9, 2025-6pm EST Dec 15, 2025

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE

This Afternoon
SSW wind 9 to 12 kt. Partly sunny. Seas around 1 ft.
Tonight
SW wind 17 to 21 kt, with gusts as high as 27 kt. Mostly cloudy. Seas 2 ft building to 4 ft.
Wednesday
SSW wind 21 to 24 kt increasing to 25 to 28 kt in the afternoon. Winds could gust as high as 38 kt. Rain likely after 1pm. Seas 4 ft building to 7 ft.
Wednesday Night
WSW wind 23 to 26 kt becoming W after midnight. Winds could gust as high as 33 kt. A chance of rain before 1am. Seas 5 to 6 ft.
Thursday
W wind around 25 kt, with gusts as high as 35 kt. Mostly sunny. Seas around 4 ft.
Thursday Night
W wind 25 to 28 kt decreasing to 22 to 25 kt after midnight. Winds could gust as high as 35 kt. Partly cloudy. Seas 3 to 4 ft.
Friday
W wind 16 to 19 kt, with gusts as high as 27 kt. Mostly sunny. Seas 2 to 3 ft.
Friday Night
W wind 12 to 15 kt, with gusts as high as 21 kt. Mostly cloudy. Seas around 2 ft.
Saturday
W wind 13 to 18 kt, with gusts as high as 26 kt. Mostly cloudy. Seas 2 to 3 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: 40.62°N 73.24°W
Last Update: 1:17 pm EST Dec 9, 2025
Forecast Valid: 1pm EST Dec 9, 2025-6pm EST Dec 15, 2025
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