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Hazardous Weather Conditions

For More Weather Information:

New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:S wind around 7 kt. A chance of showers and thunderstorms after 2am. Seas 1 ft or less.

      S 7kt
      < 1ft

    • Tuesday

      Tuesday:S wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 21 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

      ⇑S 14kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSE wind 15 to 17 kt, with gusts as high as 23 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

      SSE 17kt
      < 1ft

    • Wednesday

      Wednesday:SE wind 9 to 12 kt becoming E in the afternoon. Showers likely, with thunderstorms also possible after 11am. Seas 1 ft or less.

      SE 12kt
      < 1ft

    • Wednesday Night

      Wednesday Night:NNE wind around 10 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.

      NNE 10kt
      < 1ft

    • Thursday

      Thursday:N wind around 11 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      N 11kt
      < 1ft

    • Thursday Night

      Thursday Night:N wind around 8 kt. Showers likely and possibly a thunderstorm before 8pm. Seas 1 ft or less.

      N 8kt
      < 1ft

    • Friday

      Friday:N wind 5 to 8 kt. A chance of showers. Seas 1 ft or less.

      N 8kt
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.

      Light Wind
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:51 pm EDT Jul 27, 2026
Forecast Valid: 11pm EDT Jul 27, 2026-6pm EDT Aug 3, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH

Overnight
S wind around 7 kt. A chance of showers and thunderstorms after 2am. Seas 1 ft or less.
Tuesday
S wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 21 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Tuesday Night
SSE wind 15 to 17 kt, with gusts as high as 23 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.
Wednesday
SE wind 9 to 12 kt becoming E in the afternoon. Showers likely, with thunderstorms also possible after 11am. Seas 1 ft or less.
Wednesday Night
NNE wind around 10 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.
Thursday
N wind around 11 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Thursday Night
N wind around 8 kt. Showers likely and possibly a thunderstorm before 8pm. Seas 1 ft or less.
Friday
N wind 5 to 8 kt. A chance of showers. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. A chance of showers. 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: 2:51 pm EDT Jul 27, 2026
Forecast Valid: 11pm EDT Jul 27, 2026-6pm EDT Aug 3, 2026
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