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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:E wind around 7 kt. A chance of showers and thunderstorms. Seas around 1 ft.

      E 7kt
      1ft

    • Tonight

      Tonight:E wind 7 to 9 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Seas around 1 ft.

      E 9kt
      1ft

    • Monday

      Monday:E wind around 15 kt, with gusts as high as 22 kt. Showers and possibly a thunderstorm. Seas around 2 ft.

      E 15kt
      2ft

    • Monday Night

      Monday Night:ENE wind 13 to 15 kt, with gusts as high as 23 kt. Showers and possibly a thunderstorm. Seas around 2 ft.

      ENE 15kt
      2ft

    • Tuesday

      Tuesday:NE wind 10 to 13 kt. Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Seas 1 to 2 ft.

      NE 13kt
      1-2ft

    • Tuesday Night

      Tuesday Night:NNE wind around 10 kt. A chance of showers before 2am. Seas around 1 ft.

      NNE 10kt
      1ft

    • Wednesday

      Wednesday:NNE wind 5 to 8 kt becoming variable and less than 5 kt in the afternoon. Partly sunny. Seas 1 ft or less.

      NNE 8kt⇓
      < 1ft

    • Wednesday Night

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

      Light Wind
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming SSW 5 to 8 kt in the morning. Mostly sunny. Seas around 1 ft.

      ⇑SSW 8kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 2:56 pm EDT Jul 5, 2026
Forecast Valid: 3pm EDT Jul 5, 2026-6pm EDT Jul 12, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH

This Afternoon
E wind around 7 kt. A chance of showers and thunderstorms. Seas around 1 ft.
Tonight
E wind 7 to 9 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Seas around 1 ft.
Monday
E wind around 15 kt, with gusts as high as 22 kt. Showers and possibly a thunderstorm. Seas around 2 ft.
Monday Night
ENE wind 13 to 15 kt, with gusts as high as 23 kt. Showers and possibly a thunderstorm. Seas around 2 ft.
Tuesday
NE wind 10 to 13 kt. Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Seas 1 to 2 ft.
Tuesday Night
NNE wind around 10 kt. A chance of showers before 2am. Seas around 1 ft.
Wednesday
NNE wind 5 to 8 kt becoming variable and less than 5 kt in the afternoon. Partly sunny. Seas 1 ft or less.
Wednesday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Thursday
Variable winds less than 5 kt becoming SSW 5 to 8 kt in the morning. Mostly sunny. Seas around 1 ft.

*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: 2:56 pm EDT Jul 5, 2026
Forecast Valid: 3pm EDT Jul 5, 2026-6pm EDT Jul 12, 2026
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