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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]

    • Monday

      Monday:N wind 10 to 15 kt becoming WNW 17 to 22 kt. Winds could gust as high as 30 kt. A chance of snow before 7am. Seas 8 ft subsiding to 6 ft.

      ⇑WNW 22kt
      8ftWaves Subsiding

    • Monday Night

      Monday Night:WNW wind 21 to 24 kt, with gusts as high as 30 kt. Widespread freezing spray, mainly after 4am. Mostly clear. Seas around 6 ft.

      WNW 24kt
      6ft

    • Tuesday

      Tuesday:WNW wind 18 to 22 kt becoming WSW in the afternoon. Winds could gust as high as 28 kt. Widespread freezing spray before 7am. Mostly sunny. Seas 4 to 5 ft.

      WSW 22kt
      4-5ft

    • Tuesday Night

      Tuesday Night:WNW wind 19 to 22 kt, with gusts as high as 28 kt. Partly cloudy. Seas 4 to 5 ft.

      WNW 22kt
      4-5ft

    • Wednesday

      Wednesday:WNW wind 16 to 19 kt decreasing to 13 to 16 kt in the afternoon. Winds could gust as high as 25 kt. Mostly sunny. Seas 2 to 3 ft.

      WNW 19kt⇓
      2-3ft

    • Wednesday Night

      Wednesday Night:W wind around 14 kt becoming NW after midnight. Winds could gust as high as 20 kt. Mostly cloudy. Seas around 2 ft.

      W 14kt
      2ft

    • Thursday

      Thursday:NW wind 15 to 20 kt, with gusts as high as 26 kt. Partly sunny. Seas 2 to 3 ft.

      NW 20kt
      2-3ft

    • Thursday Night

      Thursday Night:NW wind 21 to 23 kt, with gusts as high as 29 kt. Partly cloudy. Seas 3 to 4 ft.

      NW 23kt
      3-4ft

    • Friday

      Friday:WNW wind 20 to 22 kt, with gusts as high as 28 kt. Mostly sunny. Seas 3 to 4 ft.

      WNW 22kt
      3-4ft


Associated Zone Forecast which includes this point

Last Update: 8:33 pm EST Jan 25, 2026
Forecast Valid: 1am EST Jan 26, 2026-6pm EST Feb 1, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT UNTIL 1 AM EST MONDAY...

Monday
N wind 10 to 15 kt becoming WNW 17 to 22 kt. Winds could gust as high as 30 kt. A chance of snow before 7am. Seas 8 ft subsiding to 6 ft.
Monday Night
WNW wind 21 to 24 kt, with gusts as high as 30 kt. Widespread freezing spray, mainly after 4am. Mostly clear. Seas around 6 ft.
Tuesday
WNW wind 18 to 22 kt becoming WSW in the afternoon. Winds could gust as high as 28 kt. Widespread freezing spray before 7am. Mostly sunny. Seas 4 to 5 ft.
Tuesday Night
WNW wind 19 to 22 kt, with gusts as high as 28 kt. Partly cloudy. Seas 4 to 5 ft.
Wednesday
WNW wind 16 to 19 kt decreasing to 13 to 16 kt in the afternoon. Winds could gust as high as 25 kt. Mostly sunny. Seas 2 to 3 ft.
Wednesday Night
W wind around 14 kt becoming NW after midnight. Winds could gust as high as 20 kt. Mostly cloudy. Seas around 2 ft.
Thursday
NW wind 15 to 20 kt, with gusts as high as 26 kt. Partly sunny. Seas 2 to 3 ft.
Thursday Night
NW wind 21 to 23 kt, with gusts as high as 29 kt. Partly cloudy. Seas 3 to 4 ft.
Friday
WNW wind 20 to 22 kt, with gusts as high as 28 kt. Mostly sunny. Seas 3 to 4 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: 8:33 pm EST Jan 25, 2026
Forecast Valid: 1am EST Jan 26, 2026-6pm EST Feb 1, 2026
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