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Hazardous Weather Conditions

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New York, NY Local Forecast Office

15NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Sunday

      Sunday:SSW wind 11 to 14 kt increasing to 14 to 17 kt in the afternoon. Winds could gust as high as 23 kt. Rain, mainly after 1pm. Seas 1 ft or less.

      ⇑SSW 17kt
      < 1ft

    • Sunday Night

      Sunday Night:WSW wind 15 to 17 kt becoming WNW after midnight. A chance of rain before 10pm. Seas 1 ft or less.

      WSW 17kt
      < 1ft

    • Monday

      Monday:WNW wind 12 to 15 kt becoming NNW 9 to 12 kt in the afternoon. Sunny. Seas 1 ft or less.

      WNW 15kt⇓
      < 1ft

    • Monday Night

      Monday Night:N wind 5 to 7 kt becoming SSE after midnight. A slight chance of rain and snow between 1am and 4am, then a slight chance of rain after 4am. Seas 1 ft or less.

      SSE 7kt
      < 1ft

    • Tuesday

      Tuesday:SSE wind 8 to 12 kt becoming N in the afternoon. Rain. Seas 1 ft or less.

      N 12kt
      < 1ft

    • Tuesday Night

      Tuesday Night:NNW wind around 15 kt. A chance of rain before 1am. Seas 1 ft or less.

      NNW 15kt
      < 1ft

    • Wednesday

      Wednesday:NNW wind 9 to 12 kt becoming W in the afternoon. Sunny. Seas 1 ft or less.

      NNW 12kt
      < 1ft

    • Wednesday Night

      Wednesday Night:WSW wind 8 to 12 kt. Partly cloudy. Seas 1 ft or less.

      WSW 12kt
      < 1ft

    • Thursday

      Thursday:WSW wind 13 to 16 kt increasing to 16 to 19 kt in the afternoon. Partly sunny. Seas 1 ft or less.

      ⇑WSW 19kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 1:09 am EST Nov 30, 2025
Forecast Valid: 4am EST Nov 30, 2025-6pm EST Dec 6, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING

Sunday
SSW wind 11 to 14 kt increasing to 14 to 17 kt in the afternoon. Winds could gust as high as 23 kt. Rain, mainly after 1pm. Seas 1 ft or less.
Sunday Night
WSW wind 15 to 17 kt becoming WNW after midnight. A chance of rain before 10pm. Seas 1 ft or less.
Monday
WNW wind 12 to 15 kt becoming NNW 9 to 12 kt in the afternoon. Sunny. Seas 1 ft or less.
Monday Night
N wind 5 to 7 kt becoming SSE after midnight. A slight chance of rain and snow between 1am and 4am, then a slight chance of rain after 4am. Seas 1 ft or less.
Tuesday
SSE wind 8 to 12 kt becoming N in the afternoon. Rain. Seas 1 ft or less.
Tuesday Night
NNW wind around 15 kt. A chance of rain before 1am. Seas 1 ft or less.
Wednesday
NNW wind 9 to 12 kt becoming W in the afternoon. Sunny. Seas 1 ft or less.
Wednesday Night
WSW wind 8 to 12 kt. Partly cloudy. Seas 1 ft or less.
Thursday
WSW wind 13 to 16 kt increasing to 16 to 19 kt in the afternoon. Partly sunny. Seas 1 ft or less.

*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: 40.61°N 73.51°W
Last Update: 1:09 am EST Nov 30, 2025
Forecast Valid: 4am EST Nov 30, 2025-6pm EST Dec 6, 2025
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