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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:SSW wind around 17 kt, with gusts as high as 23 kt. Showers, mainly before 5pm. Seas 1 ft or less.

      SSW 17kt
      < 1ft

    • Tonight

      Tonight:SSW wind 10 to 13 kt becoming NW 7 to 10 kt after midnight. A chance of showers before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then a chance of showers after 11pm. Seas 1 ft or less.

      SSW 13kt⇓
      < 1ft

    • Thursday

      Thursday:NNW wind 5 to 8 kt becoming WNW in the afternoon. Mostly cloudy through mid morning, then gradual clearing. Seas 1 ft or less.

      NNW 8kt
      < 1ft

    • Thursday Night

      Thursday Night:WNW wind 5 to 7 kt becoming NNW after midnight. Increasing clouds. Seas 1 ft or less.

      WNW 7kt
      < 1ft

    • Friday

      Friday:W wind 7 to 12 kt. Sunny. Seas 1 ft or less.

      W 12kt
      < 1ft

    • Friday Night

      Friday Night:W wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. Seas 1 ft or less.

      W 6kt⇓
      < 1ft

    • Saturday

      Saturday:S wind 6 to 11 kt. Showers after 8am. Seas 1 ft or less.

      S 11kt
      < 1ft

    • Saturday Night

      Saturday Night:SSW wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers. Seas 1 ft or less.

      SSW 6kt⇓
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑S 9kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:39 pm EDT May 6, 2026
Forecast Valid: 3pm EDT May 6, 2026-6pm EDT May 13, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

This Afternoon
SSW wind around 17 kt, with gusts as high as 23 kt. Showers, mainly before 5pm. Seas 1 ft or less.
Tonight
SSW wind 10 to 13 kt becoming NW 7 to 10 kt after midnight. A chance of showers before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then a chance of showers after 11pm. Seas 1 ft or less.
Thursday
NNW wind 5 to 8 kt becoming WNW in the afternoon. Mostly cloudy through mid morning, then gradual clearing. Seas 1 ft or less.
Thursday Night
WNW wind 5 to 7 kt becoming NNW after midnight. Increasing clouds. Seas 1 ft or less.
Friday
W wind 7 to 12 kt. Sunny. Seas 1 ft or less.
Friday Night
W wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. Seas 1 ft or less.
Saturday
S wind 6 to 11 kt. Showers after 8am. Seas 1 ft or less.
Saturday Night
SSW wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers. Seas 1 ft or less.
Sunday
Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Mostly 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: 2:39 pm EDT May 6, 2026
Forecast Valid: 3pm EDT May 6, 2026-6pm EDT May 13, 2026
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