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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]

    • This Afternoon

      This Afternoon:S wind 18 to 21 kt, with gusts as high as 31 kt. Partly sunny. Seas 1 ft or less.

      S 21kt
      < 1ft

    • Tonight

      Tonight:S wind 14 to 19 kt decreasing to 9 to 14 kt after midnight. Winds could gust as high as 28 kt. Showers likely, mainly after 2am. Seas 1 ft or less.

      S 19kt⇓
      < 1ft

    • Thursday

      Thursday:Variable winds 5 kt or less. Showers and possibly a thunderstorm before 11am, then showers between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Thursday Night

      Thursday Night:Variable winds less than 5 kt becoming NW 5 to 7 kt after midnight. A chance of showers and thunderstorms. Seas 1 ft or less.

      ⇑NW 7kt
      < 1ft

    • Friday

      Friday:N wind around 9 kt. A chance of showers, mainly before 2pm. Seas 1 ft or less.

      N 9kt
      < 1ft

    • Friday Night

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

      Light Wind
      < 1ft

    • Saturday

      Saturday:SSW wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑SSW 11kt
      < 1ft

    • Saturday Night

      Saturday Night:WSW wind 5 to 8 kt. Partly cloudy. Seas 1 ft or less.

      WSW 8kt
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming WSW 5 to 8 kt in the morning. Sunny. Seas 1 ft or less.

      ⇑WSW 8kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:29 am EDT May 13, 2026
Forecast Valid: 1pm EDT May 13, 2026-6pm EDT May 19, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING

This Afternoon
S wind 18 to 21 kt, with gusts as high as 31 kt. Partly sunny. Seas 1 ft or less.
Tonight
S wind 14 to 19 kt decreasing to 9 to 14 kt after midnight. Winds could gust as high as 28 kt. Showers likely, mainly after 2am. Seas 1 ft or less.
Thursday
Variable winds 5 kt or less. Showers and possibly a thunderstorm before 11am, then showers between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Thursday Night
Variable winds less than 5 kt becoming NW 5 to 7 kt after midnight. A chance of showers and thunderstorms. Seas 1 ft or less.
Friday
N wind around 9 kt. A chance of showers, mainly before 2pm. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Saturday
SSW wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. Sunny. Seas 1 ft or less.
Saturday Night
WSW wind 5 to 8 kt. Partly cloudy. Seas 1 ft or less.
Sunday
Variable winds less than 5 kt becoming WSW 5 to 8 kt in the morning. 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: 40.91°N 73.39°W
Last Update: 2:29 am EDT May 13, 2026
Forecast Valid: 1pm EDT May 13, 2026-6pm EDT May 19, 2026
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