Hazardous Weather Conditions

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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:N wind 6 to 11 kt becoming variable and less than 5 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      N 11kt⇓
      < 1ft

    • Tonight

      Tonight:SE wind 6 to 8 kt. Showers likely, mainly after 5am.   Seas 1 ft or less.

      SE 8kt
      < 1ft

    • Friday

      Friday:S wind 11 to 13 kt becoming SW in the afternoon. Showers likely before 2pm, then a chance of showers and thunderstorms after 5pm.   Seas 1 ft or less.

      S 13kt
      < 1ft

    • Friday Night

      Friday Night:W wind 12 to 15 kt becoming NW 15 to 18 kt after midnight. Showers and thunderstorms.   Seas 1 ft or less.

      ⇑NW 18kt
      < 1ft

    • Saturday

      Saturday:NNW wind 16 to 20 kt. A chance of showers before 8am.   Seas around 1 ft.

      NNW 20kt
      1ft

    • Saturday Night

      Saturday Night:N wind 11 to 15 kt. Mostly clear. Seas around 1 ft.

      N 15kt
      1ft

    • Sunday

      Sunday:N wind 7 to 9 kt becoming WNW in the afternoon. Sunny. Seas 1 ft or less.

      NNW 9kt
      < 1ft

    • Sunday Night

      Sunday Night:SSW wind around 9 kt becoming NNW after midnight. Mostly clear. Seas 1 ft or less.

      SSW 9kt
      < 1ft

    • Monday

      Monday:N wind around 10 kt becoming SSW in the afternoon. Sunny. Seas 1 ft or less.

      N 10kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 1:55 am EDT Oct 15, 2026
Forecast Valid: 7am EDT Oct 15, 2026-6pm EDT Oct 21, 2026

View Nearby Observations

Detailed Forecast


Today
N wind 6 to 11 kt becoming variable and less than 5 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Tonight
SE wind 6 to 8 kt. Showers likely, mainly after 5am. Seas 1 ft or less.
Friday
S wind 11 to 13 kt becoming SW in the afternoon. Showers likely before 2pm, then a chance of showers and thunderstorms after 5pm. Seas 1 ft or less.
Friday Night
W wind 12 to 15 kt becoming NW 15 to 18 kt after midnight. Showers and thunderstorms. Seas 1 ft or less.
Saturday
NNW wind 16 to 20 kt. A chance of showers before 8am. Seas around 1 ft.
Saturday Night
N wind 11 to 15 kt. Mostly clear. Seas around 1 ft.
Sunday
N wind 7 to 9 kt becoming WNW in the afternoon. Sunny. Seas 1 ft or less.
Sunday Night
SSW wind around 9 kt becoming NNW after midnight. Mostly clear. Seas 1 ft or less.
Monday
N wind around 10 kt becoming SSW in the afternoon. 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: 1:55 am EDT Oct 15, 2026
Forecast Valid: 7am EDT Oct 15, 2026-6pm EDT Oct 21, 2026
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