Hazardous Weather Conditions

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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Thursday

      Thursday:W wind around 15 kt. Mostly sunny. Seas 1 ft or less.

      W 15kt
      < 1ft

    • Thursday Night

      Thursday Night:W wind around 13 kt. Mostly cloudy. Seas around 1 ft.

      W 13kt
      1ft

    • Friday

      Friday:WSW wind 10 to 13 kt increasing to 16 to 19 kt in the afternoon. Winds could gust as high as 27 kt. Mostly sunny. Seas 1 ft or less.

      ⇑WSW 19kt
      < 1ft

    • Friday Night

      Friday Night:NW wind 17 to 22 kt. Partly cloudy. Seas around 1 ft.

      NW 22kt
      1ft

    • Saturday

      Saturday:NW wind 9 to 13 kt. Mostly sunny. Seas 1 ft or less.

      NW 13kt
      < 1ft

    • Saturday Night

      Saturday Night:N wind around 9 kt. A chance of snow after 1am.   Seas 1 ft or less.

      N 9kt
      < 1ft

    • Sunday

      Sunday:NE wind 12 to 17 kt increasing to 18 to 23 kt in the afternoon. Snow.   Seas around 1 ft.

      ⇑NE 23kt
      1ft

    • Sunday Night

      Sunday Night:NE wind 24 to 27 kt decreasing to 18 to 21 kt after midnight. Snow.   Seas around 1 ft.

      NE 27kt⇓
      1ft

    • Monday

      Monday:N wind 15 to 19 kt becoming NW in the afternoon. A chance of snow.   Seas around 1 ft.

      NW 19kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 1:01 am EST Jan 22, 2026
Forecast Valid: 1am EST Jan 22, 2026-6pm EST Jan 28, 2026

View Nearby Observations

Detailed Forecast


Thursday
W wind around 15 kt. Mostly sunny. Seas 1 ft or less.
Thursday Night
W wind around 13 kt. Mostly cloudy. Seas around 1 ft.
Friday
WSW wind 10 to 13 kt increasing to 16 to 19 kt in the afternoon. Winds could gust as high as 27 kt. Mostly sunny. Seas 1 ft or less.
Friday Night
NW wind 17 to 22 kt. Partly cloudy. Seas around 1 ft.
Saturday
NW wind 9 to 13 kt. Mostly sunny. Seas 1 ft or less.
Saturday Night
N wind around 9 kt. A chance of snow after 1am. Seas 1 ft or less.
Sunday
NE wind 12 to 17 kt increasing to 18 to 23 kt in the afternoon. Snow. Seas around 1 ft.
Sunday Night
NE wind 24 to 27 kt decreasing to 18 to 21 kt after midnight. Snow. Seas around 1 ft.
Monday
N wind 15 to 19 kt becoming NW in the afternoon. A chance of snow. Seas around 1 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: 40.91°N 73.39°W
Last Update: 1:01 am EST Jan 22, 2026
Forecast Valid: 1am EST Jan 22, 2026-6pm EST Jan 28, 2026
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