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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:NW wind 21 to 26 kt, with gusts as high as 32 kt. Widespread freezing spray. Partly cloudy. Seas 4 to 5 ft.

      NW 26kt
      4-5ft

      Gale Warning
      Gale Warning

    • Saturday

      Saturday:NNW wind 17 to 20 kt decreasing to 14 to 17 kt in the afternoon. Winds could gust as high as 26 kt. Widespread freezing spray before 1pm. Mostly sunny. Seas 2 to 3 ft.

      NNW 20kt⇓
      2-3ft

    • Saturday Night

      Saturday Night:N wind 10 to 12 kt becoming NNE after midnight. A chance of snow after 1am. Seas around 2 ft.

      NNE 12kt
      2ft

    • Sunday

      Sunday:NE wind 15 to 20 kt increasing to 23 to 28 kt. Snow. The snow could be heavy at times. Seas 2 ft building to 5 ft.

      ⇑NE 28kt
      Waves Building5ft

    • Sunday Night

      Sunday Night:ENE wind 26 to 31 kt becoming NNE 21 to 26 kt after midnight. Snow and sleet before 10pm, then rain and sleet between 10pm and 4am, then snow and sleet likely after 4am. The snow could be heavy at times. Seas 7 to 8 ft.

      ENE 31kt⇓
      7-8ft

    • Monday

      Monday:N wind 17 to 20 kt becoming WNW 20 to 23 kt in the afternoon. Winds could gust as high as 29 kt. Snow likely, mainly before 1pm. Seas 7 to 8 ft.

      ⇑WNW 23kt
      7-8ft

    • Monday Night

      Monday Night:WNW wind 26 to 28 kt. Partly cloudy. Seas 7 to 8 ft.

      WNW 28kt
      7-8ft

    • Tuesday

      Tuesday:W wind 23 to 26 kt. Mostly sunny. Seas 5 to 6 ft.

      W 26kt
      5-6ft

    • Tuesday Night

      Tuesday Night:W wind 22 to 27 kt. Partly cloudy. Seas 5 to 6 ft.

      W 27kt
      5-6ft


Associated Zone Forecast which includes this point

Last Update: 12:58 pm EST Jan 23, 2026
Forecast Valid: 8pm EST Jan 23, 2026-6pm EST Jan 30, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

Tonight
NW wind 21 to 26 kt, with gusts as high as 32 kt. Widespread freezing spray. Partly cloudy. Seas 4 to 5 ft.
Saturday
NNW wind 17 to 20 kt decreasing to 14 to 17 kt in the afternoon. Winds could gust as high as 26 kt. Widespread freezing spray before 1pm. Mostly sunny. Seas 2 to 3 ft.
Saturday Night
N wind 10 to 12 kt becoming NNE after midnight. A chance of snow after 1am. Seas around 2 ft.
Sunday
NE wind 15 to 20 kt increasing to 23 to 28 kt. Snow. The snow could be heavy at times. Seas 2 ft building to 5 ft.
Sunday Night
ENE wind 26 to 31 kt becoming NNE 21 to 26 kt after midnight. Snow and sleet before 10pm, then rain and sleet between 10pm and 4am, then snow and sleet likely after 4am. The snow could be heavy at times. Seas 7 to 8 ft.
Monday
N wind 17 to 20 kt becoming WNW 20 to 23 kt in the afternoon. Winds could gust as high as 29 kt. Snow likely, mainly before 1pm. Seas 7 to 8 ft.
Monday Night
WNW wind 26 to 28 kt. Partly cloudy. Seas 7 to 8 ft.
Tuesday
W wind 23 to 26 kt. Mostly sunny. Seas 5 to 6 ft.
Tuesday Night
W wind 22 to 27 kt. Partly cloudy. Seas 5 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: 12:58 pm EST Jan 23, 2026
Forecast Valid: 8pm EST Jan 23, 2026-6pm EST Jan 30, 2026
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