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Hazardous Weather Conditions

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New York, NY Local Forecast Office

18NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Thursday

      Thursday:SSE wind 5 to 8 kt becoming SW in the afternoon. Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. Seas 1 ft or less.

      SSE 8kt
      < 1ft

    • Thursday Night

      Thursday Night:WNW wind 6 to 8 kt. A chance of showers, mainly after 11pm. Seas 1 ft or less.

      WNW 8kt
      < 1ft

    • Friday

      Friday:NW wind around 8 kt. A chance of showers before 2pm. Seas 1 ft or less.

      NW 8kt
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Saturday

      Saturday:SW wind 5 to 8 kt becoming S 10 to 13 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑S 13kt
      < 1ft

    • Saturday Night

      Saturday Night:SW wind 7 to 11 kt. Partly cloudy. Seas 1 ft or less.

      SW 11kt
      < 1ft

    • Sunday

      Sunday:SW wind 5 to 7 kt. Mostly sunny. Seas 1 ft or less.

      SW 7kt
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Monday

      Monday:Variable winds less than 5 kt becoming SE 5 to 9 kt in the morning. Mostly sunny. Seas 1 ft or less.

      ⇑SE 9kt
      < 1ft


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 5 to 8 kt becoming SW in the afternoon. Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. Seas 1 ft or less.
Thursday Night
WNW wind 6 to 8 kt. A chance of showers, mainly after 11pm. Seas 1 ft or less.
Friday
NW wind around 8 kt. A chance of showers before 2pm. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Saturday
SW wind 5 to 8 kt becoming S 10 to 13 kt in the afternoon. Sunny. Seas 1 ft or less.
Saturday Night
SW wind 7 to 11 kt. Partly cloudy. Seas 1 ft or less.
Sunday
SW wind 5 to 7 kt. Mostly sunny. Seas 1 ft or less.
Sunday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Monday
Variable winds less than 5 kt becoming SE 5 to 9 kt in the morning. Mostly sunny. Seas 1 ft or less.

*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: 40.62°N 73.59°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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