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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]

    • Today

      Today:WNW wind 13 to 18 kt, with gusts as high as 24 kt. Sunny. Seas around 1 ft.

      WNW 18kt
      1ft

    • Tonight

      Tonight:NW wind 5 to 9 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

      NW 9kt⇓
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming W around 6 kt in the morning. Sunny. Seas 1 ft or less.

      ⇑W 6kt
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. A slight chance of showers after 2am. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Monday

      Monday:Variable winds less than 5 kt becoming SSE 9 to 14 kt in the morning. Winds could gust as high as 23 kt. Showers likely, then showers and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      ⇑SSE 14kt
      < 1ft

    • Monday Night

      Monday Night:S wind 10 to 15 kt becoming WSW after midnight. Showers and possibly a thunderstorm. Seas around 1 ft.

      S 15kt
      1ft

    • Tuesday

      Tuesday:NW wind around 8 kt. A chance of showers before 8am. Seas 1 ft or less.

      NW 8kt
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

      Light Wind
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:19 am EDT Jun 20, 2026
Forecast Valid: 6am EDT Jun 20, 2026-6pm EDT Jun 26, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

Today
WNW wind 13 to 18 kt, with gusts as high as 24 kt. Sunny. Seas around 1 ft.
Tonight
NW wind 5 to 9 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.
Sunday
Variable winds less than 5 kt becoming W around 6 kt in the morning. Sunny. Seas 1 ft or less.
Sunday Night
Variable winds 5 kt or less. A slight chance of showers after 2am. Seas 1 ft or less.
Monday
Variable winds less than 5 kt becoming SSE 9 to 14 kt in the morning. Winds could gust as high as 23 kt. Showers likely, then showers and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Monday Night
S wind 10 to 15 kt becoming WSW after midnight. Showers and possibly a thunderstorm. Seas around 1 ft.
Tuesday
NW wind around 8 kt. A chance of showers before 8am. Seas 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Wednesday
Variable winds 5 kt or less. Sunny. 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: 2:19 am EDT Jun 20, 2026
Forecast Valid: 6am EDT Jun 20, 2026-6pm EDT Jun 26, 2026
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