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Hazardous Weather Conditions

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New York, NY Local Forecast Office

9NM E Islip NY

Marine Point Forecast

[NOTICE]

    • Monday

      Monday:SW wind 19 to 21 kt. A slight chance of showers after 2pm. Seas around 1 ft.

      SW 21kt
      1ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday Night

      Monday Night:SW wind 16 to 20 kt. A chance of showers, mainly after 2am. Seas around 1 ft.

      SW 20kt
      1ft

    • Tuesday

      Tuesday:SSW wind 16 to 18 kt. A chance of showers before 2pm. Seas around 1 ft.

      SSW 18kt
      1ft

    • Tuesday Night

      Tuesday Night:SSW wind 21 to 24 kt. Mostly cloudy. Seas around 2 ft.

      SSW 24kt
      2ft

    • Wednesday

      Wednesday:SW wind 17 to 21 kt, with gusts as high as 27 kt. Showers likely and possibly a thunderstorm, mainly after 5pm. Seas 1 to 2 ft.

      SW 21kt
      1-2ft

    • Wednesday Night

      Wednesday Night:WSW wind 10 to 13 kt becoming ENE after midnight. Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Seas 1 ft or less.

      WSW 13kt
      < 1ft

    • Thursday

      Thursday:E wind around 21 kt. A chance of showers before 2pm. Seas around 1 ft.

      E 21kt
      1ft

    • Thursday Night

      Thursday Night:E wind 15 to 19 kt. A chance of rain. Seas around 1 ft.

      E 19kt
      1ft

    • Friday

      Friday:SSW wind around 15 kt. Cloudy. Seas around 1 ft.

      SSW 15kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 2:28 am EDT Mar 30, 2026
Forecast Valid: 3am EDT Mar 30, 2026-6pm EDT Apr 5, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT THIS MORNING

Monday
SW wind 19 to 21 kt. A slight chance of showers after 2pm. Seas around 1 ft.
Monday Night
SW wind 16 to 20 kt. A chance of showers, mainly after 2am. Seas around 1 ft.
Tuesday
SSW wind 16 to 18 kt. A chance of showers before 2pm. Seas around 1 ft.
Tuesday Night
SSW wind 21 to 24 kt. Mostly cloudy. Seas around 2 ft.
Wednesday
SW wind 17 to 21 kt, with gusts as high as 27 kt. Showers likely and possibly a thunderstorm, mainly after 5pm. Seas 1 to 2 ft.
Wednesday Night
WSW wind 10 to 13 kt becoming ENE after midnight. Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Seas 1 ft or less.
Thursday
E wind around 21 kt. A chance of showers before 2pm. Seas around 1 ft.
Thursday Night
E wind 15 to 19 kt. A chance of rain. Seas around 1 ft.
Friday
SSW wind around 15 kt. Cloudy. 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: 40.71°N 73.02°W
Last Update: 2:28 am EDT Mar 30, 2026
Forecast Valid: 3am EDT Mar 30, 2026-6pm EDT Apr 5, 2026
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