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Hazardous Weather Conditions

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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:S wind around 6 kt becoming variable and less than 5 kt after midnight. A slight chance of showers before 11pm. Widespread fog, mainly after 5am. Seas 1 ft or less.

      S 6kt⇓
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. A slight chance of showers and thunderstorms after 2pm. Widespread fog before 8am. Seas 1 ft or less.

      ⇑SSW 7kt
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds less than 5 kt becoming N 5 to 8 kt after midnight. A chance of showers and thunderstorms, then showers after 2am. Seas 1 ft or less.

      ⇑N 8kt
      < 1ft

    • Monday

      Monday:NNE wind around 6 kt becoming variable and less than 5 kt in the morning. Showers, mainly before 8am. Seas 1 ft or less.

      NNE 6kt⇓
      < 1ft

    • Monday Night

      Monday Night:WNW wind 5 to 8 kt becoming NNW 8 to 11 kt after midnight. A slight chance of showers before 8pm. Seas 1 ft or less.

      ⇑NNW 11kt
      < 1ft

    • Tuesday

      Tuesday:NNW wind 7 to 11 kt. Sunny. Seas 1 ft or less.

      NNW 11kt
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming S 9 to 14 kt in the morning. Winds could gust as high as 20 kt. Showers likely. Seas 1 ft or less.

      ⇑S 14kt
      < 1ft

    • Wednesday Night

      Wednesday Night:S wind 9 to 12 kt. Showers. Seas 1 ft or less.

      S 12kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:20 pm EDT May 9, 2026
Forecast Valid: 8pm EDT May 9, 2026-6pm EDT May 16, 2026

View Nearby Observations

Detailed Forecast


Tonight
S wind around 6 kt becoming variable and less than 5 kt after midnight. A slight chance of showers before 11pm. Widespread fog, mainly after 5am. Seas 1 ft or less.
Sunday
Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. A slight chance of showers and thunderstorms after 2pm. Widespread fog before 8am. Seas 1 ft or less.
Sunday Night
Variable winds less than 5 kt becoming N 5 to 8 kt after midnight. A chance of showers and thunderstorms, then showers after 2am. Seas 1 ft or less.
Monday
NNE wind around 6 kt becoming variable and less than 5 kt in the morning. Showers, mainly before 8am. Seas 1 ft or less.
Monday Night
WNW wind 5 to 8 kt becoming NNW 8 to 11 kt after midnight. A slight chance of showers before 8pm. Seas 1 ft or less.
Tuesday
NNW wind 7 to 11 kt. Sunny. Seas 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming S 9 to 14 kt in the morning. Winds could gust as high as 20 kt. Showers likely. Seas 1 ft or less.
Wednesday Night
S wind 9 to 12 kt. Showers. Seas 1 ft or less.

Winds and seas may be higher in and near tstms.

*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: 40.91°N 73.39°W
Last Update: 2:20 pm EDT May 9, 2026
Forecast Valid: 8pm EDT May 9, 2026-6pm EDT May 16, 2026
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