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Hazardous Weather Conditions

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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:E wind 11 to 15 kt. A chance of rain, mainly after 4am. Seas around 4 ft.

      E 15kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday

      Friday:E wind 16 to 19 kt, with gusts as high as 25 kt. Rain, mainly before 4pm. Seas 4 to 5 ft.

      E 19kt
      4-5ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday Night

      Friday Night:NE wind around 11 kt becoming WNW after midnight. A chance of rain before midnight. Seas around 4 ft.

      NE 11kt
      4ft

    • Saturday

      Saturday:W wind around 9 kt. A slight chance of rain after 1pm. Seas 3 to 4 ft.

      W 9kt
      3-4ft

    • Saturday Night

      Saturday Night:N wind 8 to 11 kt becoming ENE 11 to 14 kt after midnight. A chance of rain before 1am, then a chance of rain and snow between 1am and 4am, then a chance of snow after 4am. Seas 2 to 3 ft.

      ⇑ENE 14kt
      2-3ft

    • Sunday

      Sunday:ENE wind 16 to 19 kt increasing to 21 to 24 kt in the afternoon. Snow likely, mainly after 1pm. Seas 3 ft building to 5 ft.

      ⇑ENE 24kt
      Waves Building5ft

    • Sunday Night

      Sunday Night:ENE wind 27 to 31 kt becoming NNE after midnight. Winds could gust as high as 37 kt. Snow likely. Seas 6 ft building to 8 ft.

      NE 31kt
      Waves Building8ft

    • Monday

      Monday:N wind 25 to 30 kt decreasing to 20 to 25 kt in the afternoon. Winds could gust as high as 36 kt. A chance of snow. Seas 9 to 10 ft.

      N 30kt⇓
      9-10ft

    • Monday Night

      Monday Night:NW wind around 17 kt. Mostly cloudy. Seas 9 ft subsiding to 6 ft.

      NW 17kt
      9ftWaves Subsiding


Associated Zone Forecast which includes this point

Last Update: 3:51 pm EST Feb 19, 2026
Forecast Valid: 10pm EST Feb 19, 2026-6pm EST Feb 26, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON...

Tonight
E wind 11 to 15 kt. A chance of rain, mainly after 4am. Seas around 4 ft.
Friday
E wind 16 to 19 kt, with gusts as high as 25 kt. Rain, mainly before 4pm. Seas 4 to 5 ft.
Friday Night
NE wind around 11 kt becoming WNW after midnight. A chance of rain before midnight. Seas around 4 ft.
Saturday
W wind around 9 kt. A slight chance of rain after 1pm. Seas 3 to 4 ft.
Saturday Night
N wind 8 to 11 kt becoming ENE 11 to 14 kt after midnight. A chance of rain before 1am, then a chance of rain and snow between 1am and 4am, then a chance of snow after 4am. Seas 2 to 3 ft.
Sunday
ENE wind 16 to 19 kt increasing to 21 to 24 kt in the afternoon. Snow likely, mainly after 1pm. Seas 3 ft building to 5 ft.
Sunday Night
ENE wind 27 to 31 kt becoming NNE after midnight. Winds could gust as high as 37 kt. Snow likely. Seas 6 ft building to 8 ft.
Monday
N wind 25 to 30 kt decreasing to 20 to 25 kt in the afternoon. Winds could gust as high as 36 kt. A chance of snow. Seas 9 to 10 ft.
Monday Night
NW wind around 17 kt. Mostly cloudy. Seas 9 ft subsiding 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: 3:51 pm EST Feb 19, 2026
Forecast Valid: 10pm EST Feb 19, 2026-6pm EST Feb 26, 2026
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