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Hazardous Weather Conditions

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New York, NY Local Forecast Office

19NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:NNE wind 10 to 14 kt, with gusts as high as 20 kt. Partly cloudy. Seas around 2 ft.

      NNE 14kt
      2ft

      Small Craft Advisory
      Small Craft Advisory

    • Saturday

      Saturday:NE wind 10 to 13 kt becoming E in the afternoon. Mostly sunny. Seas around 2 ft.

      NE 13kt
      2ft

      Small Craft Advisory
      Small Craft Advisory

    • Saturday Night

      Saturday Night:ESE wind around 12 kt. Mostly cloudy. Seas around 2 ft.

      ESE 12kt
      2ft

    • Sunday

      Sunday:S wind 14 to 17 kt, with gusts as high as 23 kt. A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 2 to 3 ft.

      S 17kt
      2-3ft

    • Sunday Night

      Sunday Night:S wind 13 to 16 kt becoming NW after midnight. Winds could gust as high as 22 kt. Showers and possibly a thunderstorm before 2am, then showers likely. Seas around 3 ft.

      S 16kt
      3ft

    • Monday

      Monday:NNE wind 14 to 16 kt, with gusts as high as 22 kt. Showers likely, mainly before 8am. Seas around 2 ft.

      NNE 16kt
      2ft

    • Monday Night

      Monday Night:NE wind 16 to 19 kt. A chance of showers. Seas 2 to 3 ft.

      NE 19kt
      2-3ft

    • Tuesday

      Tuesday:ENE wind 20 to 22 kt, with gusts as high as 30 kt. A chance of showers. Seas 4 to 5 ft.

      ENE 22kt
      4-5ft

    • Tuesday Night

      Tuesday Night:ENE wind around 24 kt, with gusts as high as 31 kt. Mostly cloudy. Seas 5 to 6 ft.

      ENE 24kt
      5-6ft


Associated Zone Forecast which includes this point

Last Update: 3:10 pm EDT Sep 18, 2026
Forecast Valid: 8pm EDT Sep 18, 2026-6pm EDT Sep 25, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT

Tonight
NNE wind 10 to 14 kt, with gusts as high as 20 kt. Partly cloudy. Seas around 2 ft.
Saturday
NE wind 10 to 13 kt becoming E in the afternoon. Mostly sunny. Seas around 2 ft.
Saturday Night
ESE wind around 12 kt. Mostly cloudy. Seas around 2 ft.
Sunday
S wind 14 to 17 kt, with gusts as high as 23 kt. A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 2 to 3 ft.
Sunday Night
S wind 13 to 16 kt becoming NW after midnight. Winds could gust as high as 22 kt. Showers and possibly a thunderstorm before 2am, then showers likely. Seas around 3 ft.
Monday
NNE wind 14 to 16 kt, with gusts as high as 22 kt. Showers likely, mainly before 8am. Seas around 2 ft.
Monday Night
NE wind 16 to 19 kt. A chance of showers. Seas 2 to 3 ft.
Tuesday
ENE wind 20 to 22 kt, with gusts as high as 30 kt. A chance of showers. Seas 4 to 5 ft.
Tuesday Night
ENE wind around 24 kt, with gusts as high as 31 kt. Mostly cloudy. Seas 5 to 6 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: 40.57°N 73.57°W
Last Update: 3:10 pm EDT Sep 18, 2026
Forecast Valid: 8pm EDT Sep 18, 2026-6pm EDT Sep 25, 2026
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