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Hazardous Weather Conditions

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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • M.L.King Day

      M.L.King Day:WSW wind around 21 kt. A chance of flurries. Seas around 4 ft.

      WSW 21kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:W wind 20 to 23 kt, with gusts as high as 29 kt. A chance of flurries before 10pm. Patchy freezing spray after 1am. Seas 4 to 5 ft.

      W 23kt
      4-5ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday

      Tuesday:W wind around 19 kt, with gusts as high as 27 kt. Patchy freezing spray. Sunny. Seas around 4 ft.

      W 19kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday Night

      Tuesday Night:W wind 14 to 17 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 23 kt. Patchy freezing spray before 1am. Mostly clear. Seas 2 to 3 ft.

      W 17kt⇓
      2-3ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday

      Wednesday:W wind 8 to 11 kt becoming SSW 15 to 20 kt in the afternoon. Mostly sunny. Seas 2 ft building to 4 ft.

      ⇑SSW 20kt
      Waves Building4ft

    • Wednesday Night

      Wednesday Night:SSW wind 21 to 24 kt becoming WSW 18 to 21 kt after midnight. Mostly cloudy. Seas around 5 ft.

      SSW 24kt⇓
      5ft

    • Thursday

      Thursday:WSW wind 15 to 18 kt. Mostly sunny. Seas around 4 ft.

      WSW 18kt
      4ft

    • Thursday Night

      Thursday Night:W wind around 17 kt, with gusts as high as 24 kt. Partly cloudy. Seas around 3 ft.

      W 17kt
      3ft

    • Friday

      Friday:W wind 17 to 20 kt, with gusts as high as 28 kt. Partly sunny. Seas around 3 ft.

      W 20kt
      3ft


Associated Zone Forecast which includes this point

Last Update: 3:36 pm EST Jan 19, 2026
Forecast Valid: 5pm EST Jan 19, 2026-6pm EST Jan 26, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

M.L.King Day
WSW wind around 21 kt. A chance of flurries. Seas around 4 ft.
Tonight
W wind 20 to 23 kt, with gusts as high as 29 kt. A chance of flurries before 10pm. Patchy freezing spray after 1am. Seas 4 to 5 ft.
Tuesday
W wind around 19 kt, with gusts as high as 27 kt. Patchy freezing spray. Sunny. Seas around 4 ft.
Tuesday Night
W wind 14 to 17 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 23 kt. Patchy freezing spray before 1am. Mostly clear. Seas 2 to 3 ft.
Wednesday
W wind 8 to 11 kt becoming SSW 15 to 20 kt in the afternoon. Mostly sunny. Seas 2 ft building to 4 ft.
Wednesday Night
SSW wind 21 to 24 kt becoming WSW 18 to 21 kt after midnight. Mostly cloudy. Seas around 5 ft.
Thursday
WSW wind 15 to 18 kt. Mostly sunny. Seas around 4 ft.
Thursday Night
W wind around 17 kt, with gusts as high as 24 kt. Partly cloudy. Seas around 3 ft.
Friday
W wind 17 to 20 kt, with gusts as high as 28 kt. Partly sunny. Seas around 3 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: 3:36 pm EST Jan 19, 2026
Forecast Valid: 5pm EST Jan 19, 2026-6pm EST Jan 26, 2026
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