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Hazardous Weather Conditions

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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

    • Thursday

      Thursday:SSE wind 6 to 10 kt becoming SW in the afternoon. Showers before 8am, then showers and possibly a thunderstorm between 8am and 11am, then a chance of showers after 11am. Seas around 3 ft.

      SSE 10kt
      3ft

    • Thursday Night

      Thursday Night:WNW wind 7 to 11 kt. A chance of showers, mainly after 11pm. Seas around 3 ft.

      WNW 11kt
      3ft

    • Friday

      Friday:WNW wind 7 to 10 kt. A chance of showers before 2pm. Seas around 4 ft.

      WNW 10kt
      4ft

    • Friday Night

      Friday Night:WNW wind around 6 kt becoming ESE in the evening. Partly cloudy. Seas around 4 ft.

      S 6kt
      4ft

    • Saturday

      Saturday:SW wind 7 to 10 kt becoming S 13 to 16 kt in the afternoon. Sunny. Seas around 3 ft.

      ⇑S 16kt
      3ft

    • Saturday Night

      Saturday Night:SW wind 14 to 17 kt decreasing to 10 to 13 kt after midnight. Partly cloudy. Seas 4 to 5 ft.

      SW 17kt⇓
      4-5ft

    • Sunday

      Sunday:SW wind 7 to 10 kt. Mostly sunny. Seas around 3 ft.

      SW 10kt
      3ft

    • Sunday Night

      Sunday Night:SW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 3 ft.

      SW 7kt⇓
      3ft

    • Monday

      Monday:NE wind 6 to 10 kt becoming SE in the afternoon. Mostly sunny. Seas around 2 ft.

      ESE 10kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 10:05 pm EDT May 13, 2026
Forecast Valid: 1am EDT May 14, 2026-6pm EDT May 20, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY...

Thursday
SSE wind 6 to 10 kt becoming SW in the afternoon. Showers before 8am, then showers and possibly a thunderstorm between 8am and 11am, then a chance of showers after 11am. Seas around 3 ft.
Thursday Night
WNW wind 7 to 11 kt. A chance of showers, mainly after 11pm. Seas around 3 ft.
Friday
WNW wind 7 to 10 kt. A chance of showers before 2pm. Seas around 4 ft.
Friday Night
WNW wind around 6 kt becoming ESE in the evening. Partly cloudy. Seas around 4 ft.
Saturday
SW wind 7 to 10 kt becoming S 13 to 16 kt in the afternoon. Sunny. Seas around 3 ft.
Saturday Night
SW wind 14 to 17 kt decreasing to 10 to 13 kt after midnight. Partly cloudy. Seas 4 to 5 ft.
Sunday
SW wind 7 to 10 kt. Mostly sunny. Seas around 3 ft.
Sunday Night
SW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 3 ft.
Monday
NE wind 6 to 10 kt becoming SE in the afternoon. Mostly sunny. Seas around 2 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: 40.53°N 73.44°W
Last Update: 10:05 pm EDT May 13, 2026
Forecast Valid: 1am EDT May 14, 2026-6pm EDT May 20, 2026
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