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Hazardous Weather Conditions

For More Weather Information:

New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Thursday

      Thursday:WSW wind 11 to 16 kt increasing to 16 to 21 kt in the afternoon. Winds could gust as high as 27 kt. Partly sunny. Seas 3 to 4 ft.

      ⇑WSW 21kt
      3-4ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday Night

      Thursday Night:W wind 22 to 25 kt, with gusts as high as 31 kt. Patchy freezing spray after 4am. Cloudy, then gradually becoming partly cloudy. Seas 4 to 5 ft.

      W 25kt
      4-5ft

      Gale Warning
      Gale Warning

    • Friday

      Friday:W wind 21 to 24 kt decreasing to 15 to 18 kt in the afternoon. Winds could gust as high as 30 kt. Patchy freezing spray before 7am. Sunny. Seas 3 to 4 ft.

      W 24kt⇓
      3-4ft

      Gale Warning
      Gale Warning

    • Friday Night

      Friday Night:SW wind 14 to 16 kt. A slight chance of snow after 1am. Seas 3 to 4 ft.

      SW 16kt
      3-4ft

    • Saturday

      Saturday:SW wind around 12 kt. A chance of rain and snow before 10am, then a chance of rain. Seas around 4 ft.

      SW 12kt
      4ft

    • Saturday Night

      Saturday Night:WSW wind 8 to 10 kt becoming W after midnight. Mostly cloudy. Seas 3 to 4 ft.

      WSW 10kt
      3-4ft

    • Sunday

      Sunday:W wind 10 to 14 kt. A chance of snow. Seas around 3 ft.

      W 14kt
      3ft

    • Sunday Night

      Sunday Night:WNW wind around 17 kt. Mostly cloudy. Seas 2 to 3 ft.

      WNW 17kt
      2-3ft

    • M.L.King Day

      M.L.King Day:W wind 16 to 20 kt. Mostly sunny. Seas 3 to 4 ft.

      W 20kt
      3-4ft


Associated Zone Forecast which includes this point

Last Update: 2:03 am EST Jan 15, 2026
Forecast Valid: 2am EST Jan 15, 2026-6pm EST Jan 21, 2026

View Nearby Observations

Detailed Forecast

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

Thursday
WSW wind 11 to 16 kt increasing to 16 to 21 kt in the afternoon. Winds could gust as high as 27 kt. Partly sunny. Seas 3 to 4 ft.
Thursday Night
W wind 22 to 25 kt, with gusts as high as 31 kt. Patchy freezing spray after 4am. Cloudy, then gradually becoming partly cloudy. Seas 4 to 5 ft.
Friday
W wind 21 to 24 kt decreasing to 15 to 18 kt in the afternoon. Winds could gust as high as 30 kt. Patchy freezing spray before 7am. Sunny. Seas 3 to 4 ft.
Friday Night
SW wind 14 to 16 kt. A slight chance of snow after 1am. Seas 3 to 4 ft.
Saturday
SW wind around 12 kt. A chance of rain and snow before 10am, then a chance of rain. Seas around 4 ft.
Saturday Night
WSW wind 8 to 10 kt becoming W after midnight. Mostly cloudy. Seas 3 to 4 ft.
Sunday
W wind 10 to 14 kt. A chance of snow. Seas around 3 ft.
Sunday Night
WNW wind around 17 kt. Mostly cloudy. Seas 2 to 3 ft.
M.L.King Day
W wind 16 to 20 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: 40.57°N 73.57°W
Last Update: 2:03 am EST Jan 15, 2026
Forecast Valid: 2am EST Jan 15, 2026-6pm EST Jan 21, 2026
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