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Hazardous Weather Conditions

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New York, NY Local Forecast Office

13NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:N wind 5 to 7 kt becoming ESE after midnight. A slight chance of snow after 4am. Seas around 1 ft.

      N 7kt
      1ft

    • Tuesday

      Tuesday:ESE wind 7 to 10 kt becoming NNE 13 to 16 kt in the afternoon. Winds could gust as high as 26 kt. Rain likely, possibly mixed with snow before 7am, then rain. Seas 1 to 2 ft.

      ⇑NNE 16kt
      1-2ft

    • Tuesday Night

      Tuesday Night:NW wind 19 to 24 kt. Rain, mainly before 7pm. Seas around 2 ft.

      NW 24kt
      2ft

    • Wednesday

      Wednesday:NNW wind 10 to 15 kt becoming WNW 5 to 8 kt in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas 2 ft subsiding to 1 ft or less.

      NNW 15kt⇓
      2ftWaves Subsiding

    • Wednesday Night

      Wednesday Night:WSW wind 7 to 10 kt increasing to 10 to 13 kt after midnight. Partly cloudy. Seas 1 ft or less.

      ⇑WSW 13kt
      < 1ft

    • Thursday

      Thursday:WSW wind 14 to 17 kt becoming WNW in the afternoon. Winds could gust as high as 25 kt. Partly sunny. Seas around 1 ft.

      WNW 17kt
      1ft

    • Thursday Night

      Thursday Night:NW wind 15 to 18 kt decreasing to 11 to 14 kt after midnight. Winds could gust as high as 26 kt. Mostly clear. Seas around 1 ft.

      NW 18kt⇓
      1ft

    • Friday

      Friday:NNW wind 6 to 8 kt becoming SW in the afternoon. Mostly sunny. Seas 1 ft or less.

      NNW 8kt
      < 1ft

    • Friday Night

      Friday Night:SW wind around 7 kt becoming W after midnight. A chance of rain and snow after 1am. Seas 1 ft or less.

      SW 7kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 1:21 pm EST Dec 1, 2025
Forecast Valid: 6pm EST Dec 1, 2025-6pm EST Dec 8, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH

Tonight
N wind 5 to 7 kt becoming ESE after midnight. A slight chance of snow after 4am. Seas around 1 ft.
Tuesday
ESE wind 7 to 10 kt becoming NNE 13 to 16 kt in the afternoon. Winds could gust as high as 26 kt. Rain likely, possibly mixed with snow before 7am, then rain. Seas 1 to 2 ft.
Tuesday Night
NW wind 19 to 24 kt. Rain, mainly before 7pm. Seas around 2 ft.
Wednesday
NNW wind 10 to 15 kt becoming WNW 5 to 8 kt in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas 2 ft subsiding to 1 ft or less.
Wednesday Night
WSW wind 7 to 10 kt increasing to 10 to 13 kt after midnight. Partly cloudy. Seas 1 ft or less.
Thursday
WSW wind 14 to 17 kt becoming WNW in the afternoon. Winds could gust as high as 25 kt. Partly sunny. Seas around 1 ft.
Thursday Night
NW wind 15 to 18 kt decreasing to 11 to 14 kt after midnight. Winds could gust as high as 26 kt. Mostly clear. Seas around 1 ft.
Friday
NNW wind 6 to 8 kt becoming SW in the afternoon. Mostly sunny. Seas 1 ft or less.
Friday Night
SW wind around 7 kt becoming W after midnight. A chance of rain and snow after 1am. Seas 1 ft or less.

*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: 40.89°N 73.42°W
Last Update: 1:21 pm EST Dec 1, 2025
Forecast Valid: 6pm EST Dec 1, 2025-6pm EST Dec 8, 2025
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