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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]

    • Today

      Today:NE wind 5 to 9 kt becoming variable and less than 5 kt in the afternoon. Mostly cloudy. Seas around 2 ft.

      NE 9kt⇓
      2ft

    • Tonight

      Tonight:Variable winds less than 5 kt becoming W 7 to 12 kt in the evening. Snow, mainly after 1am. Seas around 2 ft.

      ⇑W 12kt
      2ft

    • Saturday

      Saturday:NNW wind 18 to 21 kt increasing to 24 to 27 kt in the morning. Winds could gust as high as 43 kt. Snow likely, mainly before 1pm. Widespread freezing spray, mainly after 1pm. Seas 3 ft building to 5 ft.

      ⇑NNW 27kt
      Waves Building5ft

      Gale Warning
      Gale Warning

    • Saturday Night

      Saturday Night:NNW wind 26 to 29 kt decreasing to 22 to 25 kt after midnight. Winds could gust as high as 43 kt. Widespread freezing spray. Mostly cloudy, then gradually becoming mostly clear. Seas around 5 ft.

      NNW 29kt⇓
      5ft

      Gale Warning
      Gale Warning

    • Sunday

      Sunday:NW wind 21 to 24 kt, with gusts as high as 30 kt. Widespread freezing spray, mainly before 1pm. Sunny. Seas around 4 ft.

      NW 24kt
      4ft

    • Sunday Night

      Sunday Night:NW wind 16 to 21 kt. Widespread freezing spray. Mostly clear. Seas around 4 ft.

      NW 21kt
      4ft

    • Monday

      Monday:NW wind 13 to 15 kt. Increasing clouds. Seas 3 to 4 ft.

      NW 15kt
      3-4ft

    • Monday Night

      Monday Night:NNW wind 10 to 13 kt. Partly cloudy. Seas 2 to 3 ft.

      NNW 13kt
      2-3ft

    • Tuesday

      Tuesday:WNW wind 8 to 10 kt. Sunny. Seas around 2 ft.

      WNW 10kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 7:06 am EST Feb 6, 2026
Forecast Valid: 10am EST Feb 6, 2026-6pm EST Feb 12, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT FROM SATURDAY MORNING THROUGH LATE

Today
NE wind 5 to 9 kt becoming variable and less than 5 kt in the afternoon. Mostly cloudy. Seas around 2 ft.
Tonight
Variable winds less than 5 kt becoming W 7 to 12 kt in the evening. Snow, mainly after 1am. Seas around 2 ft.
Saturday
NNW wind 18 to 21 kt increasing to 24 to 27 kt in the morning. Winds could gust as high as 43 kt. Snow likely, mainly before 1pm. Widespread freezing spray, mainly after 1pm. Seas 3 ft building to 5 ft.
Saturday Night
NNW wind 26 to 29 kt decreasing to 22 to 25 kt after midnight. Winds could gust as high as 43 kt. Widespread freezing spray. Mostly cloudy, then gradually becoming mostly clear. Seas around 5 ft.
Sunday
NW wind 21 to 24 kt, with gusts as high as 30 kt. Widespread freezing spray, mainly before 1pm. Sunny. Seas around 4 ft.
Sunday Night
NW wind 16 to 21 kt. Widespread freezing spray. Mostly clear. Seas around 4 ft.
Monday
NW wind 13 to 15 kt. Increasing clouds. Seas 3 to 4 ft.
Monday Night
NNW wind 10 to 13 kt. Partly cloudy. Seas 2 to 3 ft.
Tuesday
WNW wind 8 to 10 kt. Sunny. Seas around 2 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: 7:06 am EST Feb 6, 2026
Forecast Valid: 10am EST Feb 6, 2026-6pm EST Feb 12, 2026
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