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Hazardous Weather Conditions

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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:E wind 11 to 14 kt. A chance of rain, mainly after 4am. Seas around 4 ft.

      E 14kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday

      Friday:E wind 14 to 18 kt, with gusts as high as 24 kt. Rain, mainly before 4pm. Seas around 4 ft.

      E 18kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday Night

      Friday Night:NE wind around 10 kt becoming WNW after midnight. A chance of rain before midnight. Seas around 4 ft.

      NE 10kt
      4ft

    • Saturday

      Saturday:W wind around 9 kt. Partly sunny. Seas 3 to 4 ft.

      W 9kt
      3-4ft

    • Saturday Night

      Saturday Night:N wind 8 to 13 kt becoming E 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 around 2 ft.

      ENE 13kt
      2ft

    • Sunday

      Sunday:ENE wind 13 to 16 kt increasing to 17 to 20 kt in the afternoon. Snow likely, mainly after 1pm. Seas 2 to 3 ft.

      ⇑ENE 20kt
      2-3ft

    • Sunday Night

      Sunday Night:ENE wind 23 to 26 kt becoming NNE after midnight. Winds could gust as high as 34 kt. Snow likely. Seas 4 ft building to 6 ft.

      NE 26kt
      Waves Building6ft

    • Monday

      Monday:N wind 22 to 25 kt decreasing to 18 to 21 kt in the afternoon. Winds could gust as high as 33 kt. A chance of snow. Seas 6 ft building to 8 ft.

      N 25kt⇓
      Waves Building8ft

    • Monday Night

      Monday Night:NW wind around 15 kt. Mostly cloudy. Seas 7 ft subsiding to 5 ft.

      NW 15kt
      7ftWaves Subsiding


Associated Zone Forecast which includes this point

Last Update: 3:51 pm EST Feb 19, 2026
Forecast Valid: 12am EST Feb 20, 2026-6pm EST Feb 26, 2026

View Nearby Observations

Detailed Forecast

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

Overnight
E wind 11 to 14 kt. A chance of rain, mainly after 4am. Seas around 4 ft.
Friday
E wind 14 to 18 kt, with gusts as high as 24 kt. Rain, mainly before 4pm. Seas around 4 ft.
Friday Night
NE wind around 10 kt becoming WNW after midnight. A chance of rain before midnight. Seas around 4 ft.
Saturday
W wind around 9 kt. Partly sunny. Seas 3 to 4 ft.
Saturday Night
N wind 8 to 13 kt becoming E 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 around 2 ft.
Sunday
ENE wind 13 to 16 kt increasing to 17 to 20 kt in the afternoon. Snow likely, mainly after 1pm. Seas 2 to 3 ft.
Sunday Night
ENE wind 23 to 26 kt becoming NNE after midnight. Winds could gust as high as 34 kt. Snow likely. Seas 4 ft building to 6 ft.
Monday
N wind 22 to 25 kt decreasing to 18 to 21 kt in the afternoon. Winds could gust as high as 33 kt. A chance of snow. Seas 6 ft building to 8 ft.
Monday Night
NW wind around 15 kt. Mostly cloudy. Seas 7 ft subsiding to 5 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: 40.57°N 73.57°W
Last Update: 3:51 pm EST Feb 19, 2026
Forecast Valid: 12am EST Feb 20, 2026-6pm EST Feb 26, 2026
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