Hazardous Weather Conditions

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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:W wind 10 to 12 kt. Mostly sunny. Seas around 2 ft.

      W 12kt
      2ft

    • Tonight

      Tonight:W wind 10 to 12 kt. Mostly cloudy. Seas around 2 ft.

      W 12kt
      2ft

    • Wednesday

      Wednesday:NW wind 10 to 12 kt. Mostly sunny. Seas around 2 ft.

      NW 12kt
      2ft

    • Wednesday Night

      Wednesday Night:N wind 8 to 10 kt. Mostly cloudy. Seas around 2 ft.

      N 10kt
      2ft

    • Thursday

      Thursday:NNW wind around 10 kt. Mostly sunny. Seas around 2 ft.

      NNW 10kt
      2ft

    • Thursday Night

      Thursday Night:NNW wind around 10 kt. Partly cloudy. Seas around 2 ft.

      NNW 10kt
      2ft

    • Friday

      Friday:WNW wind 9 to 14 kt becoming WSW in the afternoon. Partly sunny. Seas around 2 ft.

      WSW 14kt
      2ft

    • Friday Night

      Friday Night:WSW wind 15 to 20 kt becoming WNW 22 to 27 kt. Winds could gust as high as 35 kt. A chance of snow showers.   Seas 2 ft building to 4 ft.

      ⇑WNW 27kt
      Waves Building4ft

    • Saturday

      Saturday:NW wind 33 to 36 kt, with gusts as high as 44 kt. Sunny. Seas 5 to 6 ft.

      NW 36kt
      5-6ft


Associated Zone Forecast which includes this point

Last Update: 5:06 am EST Feb 3, 2026
Forecast Valid: 12pm EST Feb 3, 2026-6pm EST Feb 9, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
W wind 10 to 12 kt. Mostly sunny. Seas around 2 ft.
Tonight
W wind 10 to 12 kt. Mostly cloudy. Seas around 2 ft.
Wednesday
NW wind 10 to 12 kt. Mostly sunny. Seas around 2 ft.
Wednesday Night
N wind 8 to 10 kt. Mostly cloudy. Seas around 2 ft.
Thursday
NNW wind around 10 kt. Mostly sunny. Seas around 2 ft.
Thursday Night
NNW wind around 10 kt. Partly cloudy. Seas around 2 ft.
Friday
WNW wind 9 to 14 kt becoming WSW in the afternoon. Partly sunny. Seas around 2 ft.
Friday Night
WSW wind 15 to 20 kt becoming WNW 22 to 27 kt. Winds could gust as high as 35 kt. A chance of snow showers. Seas 2 ft building to 4 ft.
Saturday
NW wind 33 to 36 kt, with gusts as high as 44 kt. Sunny. Seas 5 to 6 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: 40.53°N 73.44°W
Last Update: 5:06 am EST Feb 3, 2026
Forecast Valid: 12pm EST Feb 3, 2026-6pm EST Feb 9, 2026
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