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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]

    • Sunday

      Sunday:W wind 10 to 13 kt increasing to 16 to 19 kt in the afternoon. Winds could gust as high as 27 kt. A chance of rain before 10am, then a chance of rain and snow showers after 4pm. Patchy fog before 7am. Seas around 4 ft.

      ⇑W 19kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Sunday Night

      Sunday Night:W wind 21 to 26 kt, with gusts as high as 38 kt. A chance of rain and snow showers before 7pm. Seas 4 to 5 ft.

      W 26kt
      4-5ft

      Gale Warning
      Gale Warning

    • Monday

      Monday:WNW wind 15 to 19 kt becoming WSW in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas 3 to 4 ft.

      WNW 19kt
      3-4ft

    • Monday Night

      Monday Night:WSW wind 12 to 16 kt, with gusts as high as 22 kt. Partly cloudy. Seas around 3 ft.

      WSW 16kt
      3ft

    • Tuesday

      Tuesday:W wind 10 to 13 kt becoming SW in the afternoon. Sunny. Seas around 2 ft.

      SW 13kt
      2ft

    • Tuesday Night

      Tuesday Night:SSW wind around 16 kt, with gusts as high as 22 kt. Mostly cloudy. Seas 3 to 4 ft.

      SSW 16kt
      3-4ft

    • Wednesday

      Wednesday:SW wind 11 to 14 kt. Cloudy. Seas around 4 ft.

      SW 14kt
      4ft

    • Wednesday Night

      Wednesday Night:SW wind 7 to 9 kt becoming WNW after midnight. A chance of rain. Seas around 3 ft.

      SW 9kt
      3ft

    • Thursday

      Thursday:NW wind 11 to 16 kt. A chance of rain. Seas around 3 ft.

      NW 16kt
      3ft


Associated Zone Forecast which includes this point

Last Update: 1:40 am EST Jan 11, 2026
Forecast Valid: 2am EST Jan 11, 2026-6pm EST Jan 17, 2026

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Detailed Forecast

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

Sunday
W wind 10 to 13 kt increasing to 16 to 19 kt in the afternoon. Winds could gust as high as 27 kt. A chance of rain before 10am, then a chance of rain and snow showers after 4pm. Patchy fog before 7am. Seas around 4 ft.
Sunday Night
W wind 21 to 26 kt, with gusts as high as 38 kt. A chance of rain and snow showers before 7pm. Seas 4 to 5 ft.
Monday
WNW wind 15 to 19 kt becoming WSW in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas 3 to 4 ft.
Monday Night
WSW wind 12 to 16 kt, with gusts as high as 22 kt. Partly cloudy. Seas around 3 ft.
Tuesday
W wind 10 to 13 kt becoming SW in the afternoon. Sunny. Seas around 2 ft.
Tuesday Night
SSW wind around 16 kt, with gusts as high as 22 kt. Mostly cloudy. Seas 3 to 4 ft.
Wednesday
SW wind 11 to 14 kt. Cloudy. Seas around 4 ft.
Wednesday Night
SW wind 7 to 9 kt becoming WNW after midnight. A chance of rain. Seas around 3 ft.
Thursday
NW wind 11 to 16 kt. A chance of rain. 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: 1:40 am EST Jan 11, 2026
Forecast Valid: 2am EST Jan 11, 2026-6pm EST Jan 17, 2026
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