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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]

    • This Afternoon

      This Afternoon:S wind around 17 kt, with gusts as high as 23 kt. Sunny. Seas around 2 ft.

      S 17kt
      2ft

    • Tonight

      Tonight:SSW wind 16 to 21 kt, with gusts as high as 27 kt. Increasing clouds. Seas around 5 ft.

      SSW 21kt
      5ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday

      Monday:SW wind 15 to 17 kt, with gusts as high as 23 kt. A slight chance of showers after 2pm. Seas around 4 ft.

      SW 17kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday Night

      Monday Night:SSW wind 10 to 13 kt. A slight chance of rain before 8pm, then a chance of rain after 2am. Seas around 4 ft.

      SSW 13kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday

      Tuesday:SSW wind 11 to 15 kt, with gusts as high as 21 kt. A chance of rain before 2pm. Seas around 4 ft.

      SSW 15kt
      4ft

    • Tuesday Night

      Tuesday Night:SSW wind 22 to 25 kt, with gusts as high as 31 kt. Mostly cloudy. Seas 5 to 6 ft.

      SSW 25kt
      5-6ft

    • Wednesday

      Wednesday:SSW wind 16 to 18 kt, with gusts as high as 24 kt. Rain likely after 2pm. Seas around 6 ft.

      SSW 18kt
      6ft

    • Wednesday Night

      Wednesday Night:SW wind around 12 kt becoming NNE after midnight. Rain likely and possibly a thunderstorm before 2am, then a chance of rain and thunderstorms after 2am. Seas 4 to 5 ft.

      SW 12kt
      4-5ft

    • Thursday

      Thursday:E wind 15 to 17 kt. A chance of rain. Seas around 4 ft.

      E 17kt
      4ft


Associated Zone Forecast which includes this point

Last Update: 3:00 pm EDT Mar 29, 2026
Forecast Valid: 3pm EDT Mar 29, 2026-6pm EDT Apr 5, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON

This Afternoon
S wind around 17 kt, with gusts as high as 23 kt. Sunny. Seas around 2 ft.
Tonight
SSW wind 16 to 21 kt, with gusts as high as 27 kt. Increasing clouds. Seas around 5 ft.
Monday
SW wind 15 to 17 kt, with gusts as high as 23 kt. A slight chance of showers after 2pm. Seas around 4 ft.
Monday Night
SSW wind 10 to 13 kt. A slight chance of rain before 8pm, then a chance of rain after 2am. Seas around 4 ft.
Tuesday
SSW wind 11 to 15 kt, with gusts as high as 21 kt. A chance of rain before 2pm. Seas around 4 ft.
Tuesday Night
SSW wind 22 to 25 kt, with gusts as high as 31 kt. Mostly cloudy. Seas 5 to 6 ft.
Wednesday
SSW wind 16 to 18 kt, with gusts as high as 24 kt. Rain likely after 2pm. Seas around 6 ft.
Wednesday Night
SW wind around 12 kt becoming NNE after midnight. Rain likely and possibly a thunderstorm before 2am, then a chance of rain and thunderstorms after 2am. Seas 4 to 5 ft.
Thursday
E wind 15 to 17 kt. A chance of rain. Seas around 4 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: 3:00 pm EDT Mar 29, 2026
Forecast Valid: 3pm EDT Mar 29, 2026-6pm EDT Apr 5, 2026
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