Hazardous Weather Conditions

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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:SW wind around 10 kt becoming W in the morning. A chance of showers and thunderstorms, mainly after 4pm.   Seas 1 ft or less.

      W 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:N wind 5 to 8 kt. Showers likely and possibly a thunderstorm before 11pm, then a chance of showers.   Seas 1 ft or less.

      N 8kt
      < 1ft

    • Thursday

      Thursday:NNE wind 5 to 9 kt becoming variable and less than 5 kt in the afternoon. Showers likely, mainly before 11am.   Seas 1 ft or less.

      NNE 9kt⇓
      < 1ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Friday

      Friday:NE wind 9 to 11 kt becoming E in the afternoon. Partly sunny. Seas 1 ft or less.

      NE 11kt
      < 1ft

    • Friday Night

      Friday Night:SE wind around 6 kt becoming variable and less than 5 kt. Showers likely after 2am.   Seas 1 ft or less.

      SE 6kt⇓
      < 1ft

    • Saturday

      Saturday:E wind 11 to 15 kt. Showers.   Seas 1 ft or less.

      E 15kt
      < 1ft

    • Saturday Night

      Saturday Night:E wind 15 to 17 kt. Showers.   Seas around 1 ft.

      E 17kt
      1ft

    • Sunday

      Sunday:E wind 14 to 16 kt, with gusts as high as 22 kt. Showers likely.   Seas around 1 ft.

      E 16kt
      1ft


Associated Zone Forecast which includes this point

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

View Nearby Observations

Detailed Forecast


Wednesday
SW wind around 10 kt becoming W in the morning. A chance of showers and thunderstorms, mainly after 4pm. Seas 1 ft or less.
Wednesday Night
N wind 5 to 8 kt. Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Seas 1 ft or less.
Thursday
NNE wind 5 to 9 kt becoming variable and less than 5 kt in the afternoon. Showers likely, mainly before 11am. Seas 1 ft or less.
Thursday Night
Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.
Friday
NE wind 9 to 11 kt becoming E in the afternoon. Partly sunny. Seas 1 ft or less.
Friday Night
SE wind around 6 kt becoming variable and less than 5 kt. Showers likely after 2am. Seas 1 ft or less.
Saturday
E wind 11 to 15 kt. Showers. Seas 1 ft or less.
Saturday Night
E wind 15 to 17 kt. Showers. Seas around 1 ft.
Sunday
E wind 14 to 16 kt, with gusts as high as 22 kt. Showers likely. Seas around 1 ft.

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: 2:20 am EDT May 20, 2026
Forecast Valid: 2am EDT May 20, 2026-6pm EDT May 26, 2026
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