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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:ESE wind 15 to 18 kt increasing to 20 to 23 kt after midnight. Winds could gust as high as 31 kt. Showers, with thunderstorms also possible after 5am. Seas 2 ft building to 4 ft.

      ⇑ESE 23kt
      Waves Building4ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday

      Monday:S wind 21 to 25 kt, with gusts as high as 37 kt. Showers and possibly a thunderstorm. Patchy fog. Seas 6 ft building to 8 ft.

      S 25kt
      Waves Building8ft

    • Monday Night

      Monday Night:S wind 26 to 31 kt becoming WSW after midnight. Winds could gust as high as 42 kt. Showers and possibly a thunderstorm before 2am, then a chance of showers. Seas 10 to 11 ft.

      S 31kt
      10-11ft

    • Tuesday

      Tuesday:W wind 21 to 23 kt, with gusts as high as 30 kt. A chance of showers before 8am. Seas 7 to 8 ft.

      W 23kt
      7-8ft

    • Tuesday Night

      Tuesday Night:W wind 20 to 23 kt decreasing to 15 to 18 kt after midnight. Mostly clear. Seas 5 to 6 ft.

      W 23kt⇓
      5-6ft

    • Wednesday

      Wednesday:WNW wind 7 to 10 kt becoming SW in the afternoon. Increasing clouds. Seas 3 to 4 ft.

      WNW 10kt
      3-4ft

    • Wednesday Night

      Wednesday Night:S wind 8 to 10 kt. Mostly cloudy. Seas 3 to 4 ft.

      S 10kt
      3-4ft

    • Thursday

      Thursday:SSE wind 8 to 10 kt. Partly sunny. Seas around 3 ft.

      SSE 10kt
      3ft

    • Thursday Night

      Thursday Night:SSE wind 7 to 9 kt becoming SSW after midnight. Mostly cloudy. Seas around 3 ft.

      SSE 9kt
      3ft


Associated Zone Forecast which includes this point

Last Update: 2:22 pm EDT Mar 15, 2026
Forecast Valid: 6pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING

Tonight
ESE wind 15 to 18 kt increasing to 20 to 23 kt after midnight. Winds could gust as high as 31 kt. Showers, with thunderstorms also possible after 5am. Seas 2 ft building to 4 ft.
Monday
S wind 21 to 25 kt, with gusts as high as 37 kt. Showers and possibly a thunderstorm. Patchy fog. Seas 6 ft building to 8 ft.
Monday Night
S wind 26 to 31 kt becoming WSW after midnight. Winds could gust as high as 42 kt. Showers and possibly a thunderstorm before 2am, then a chance of showers. Seas 10 to 11 ft.
Tuesday
W wind 21 to 23 kt, with gusts as high as 30 kt. A chance of showers before 8am. Seas 7 to 8 ft.
Tuesday Night
W wind 20 to 23 kt decreasing to 15 to 18 kt after midnight. Mostly clear. Seas 5 to 6 ft.
Wednesday
WNW wind 7 to 10 kt becoming SW in the afternoon. Increasing clouds. Seas 3 to 4 ft.
Wednesday Night
S wind 8 to 10 kt. Mostly cloudy. Seas 3 to 4 ft.
Thursday
SSE wind 8 to 10 kt. Partly sunny. Seas around 3 ft.
Thursday Night
SSE wind 7 to 9 kt becoming SSW after midnight. Mostly cloudy. Seas around 3 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: 2:22 pm EDT Mar 15, 2026
Forecast Valid: 6pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026
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