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Hazardous Weather Conditions

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New York, NY Local Forecast Office

16NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:SW wind around 17 kt, with gusts as high as 26 kt. Mostly cloudy. Seas around 4 ft.

      SW 17kt
      4ft

    • Wednesday

      Wednesday:SSW wind 18 to 21 kt increasing to 21 to 24 kt in the afternoon. Winds could gust as high as 35 kt. Rain likely after 1pm. Seas 5 ft building to 8 ft.

      ⇑SSW 24kt
      Waves Building8ft

    • Wednesday Night

      Wednesday Night:SW wind 19 to 22 kt becoming W after midnight. Winds could gust as high as 31 kt. A chance of rain before 1am. Seas 8 ft subsiding to 6 ft.

      SW 22kt
      8ftWaves Subsiding

    • Thursday

      Thursday:W wind 20 to 22 kt, with gusts as high as 33 kt. Mostly sunny. Seas 4 to 5 ft.

      W 22kt
      4-5ft

    • Thursday Night

      Thursday Night:W wind 21 to 24 kt decreasing to 18 to 21 kt after midnight. Winds could gust as high as 33 kt. Partly cloudy. Seas 3 to 4 ft.

      W 24kt⇓
      3-4ft

    • Friday

      Friday:W wind 14 to 16 kt, with gusts as high as 24 kt. Mostly sunny. Seas 2 to 3 ft.

      W 16kt
      2-3ft

    • Friday Night

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

      W 12kt
      2ft

    • Saturday

      Saturday:W wind 11 to 15 kt, with gusts as high as 23 kt. Mostly cloudy. Seas 2 to 3 ft.

      W 15kt
      2-3ft

    • Saturday Night

      Saturday Night:W wind 12 to 14 kt, with gusts as high as 20 kt. A chance of snow. Seas 2 to 3 ft.

      W 14kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 5:42 pm EST Dec 9, 2025
Forecast Valid: 12am EST Dec 10, 2025-6pm EST Dec 16, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Overnight
SW wind around 17 kt, with gusts as high as 26 kt. Mostly cloudy. Seas around 4 ft.
Wednesday
SSW wind 18 to 21 kt increasing to 21 to 24 kt in the afternoon. Winds could gust as high as 35 kt. Rain likely after 1pm. Seas 5 ft building to 8 ft.
Wednesday Night
SW wind 19 to 22 kt becoming W after midnight. Winds could gust as high as 31 kt. A chance of rain before 1am. Seas 8 ft subsiding to 6 ft.
Thursday
W wind 20 to 22 kt, with gusts as high as 33 kt. Mostly sunny. Seas 4 to 5 ft.
Thursday Night
W wind 21 to 24 kt decreasing to 18 to 21 kt after midnight. Winds could gust as high as 33 kt. Partly cloudy. Seas 3 to 4 ft.
Friday
W wind 14 to 16 kt, with gusts as high as 24 kt. Mostly sunny. Seas 2 to 3 ft.
Friday Night
W wind 10 to 12 kt. Mostly cloudy. Seas around 2 ft.
Saturday
W wind 11 to 15 kt, with gusts as high as 23 kt. Mostly cloudy. Seas 2 to 3 ft.
Saturday Night
W wind 12 to 14 kt, with gusts as high as 20 kt. A chance of snow. 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: 40.59°N 73.51°W
Last Update: 5:42 pm EST Dec 9, 2025
Forecast Valid: 12am EST Dec 10, 2025-6pm EST Dec 16, 2025
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