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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:WNW wind 6 to 9 kt. Mostly sunny. Seas around 3 ft.

      WNW 9kt
      3ft

    • Tonight

      Tonight:Variable winds less than 5 kt becoming ENE 6 to 11 kt in the evening. A chance of rain and snow after 4am. Seas around 2 ft.

      ⇑ENE 11kt
      2ft

    • Sunday

      Sunday:E wind 16 to 19 kt increasing to 19 to 22 kt in the afternoon. Winds could gust as high as 28 kt. Rain and snow likely before 10am, then snow. Seas 2 ft building to 4 ft.

      ⇑E 22kt
      Waves Building4ft

    • Sunday Night

      Sunday Night:NE wind 23 to 26 kt becoming N 29 to 32 kt after midnight. Winds could gust as high as 42 kt. Snow. The snow could be heavy at times. Seas 4 ft building to 6 ft.

      ⇑N 32kt
      Waves Building6ft

    • Monday

      Monday:N wind 29 to 32 kt decreasing to 24 to 27 kt in the afternoon. Winds could gust as high as 43 kt. Snow. The snow could be heavy at times. Seas 7 to 8 ft.

      N 32kt⇓
      7-8ft

    • Monday Night

      Monday Night:NW wind 18 to 20 kt. Cloudy, then gradually becoming partly cloudy. Seas 7 ft subsiding to 4 ft.

      NW 20kt
      7ftWaves Subsiding

    • Tuesday

      Tuesday:WNW wind 14 to 18 kt. Mostly sunny. Seas around 3 ft.

      WNW 18kt
      3ft

    • Tuesday Night

      Tuesday Night:WNW wind 8 to 12 kt becoming SW after midnight. Mostly cloudy. Seas around 2 ft.

      WNW 12kt
      2ft

    • Wednesday

      Wednesday:SSW wind 9 to 13 kt. A chance of snow. Seas 2 to 3 ft.

      SSW 13kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 3:41 am EST Feb 21, 2026
Forecast Valid: 12pm EST Feb 21, 2026-6pm EST Feb 27, 2026

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Detailed Forecast

...STORM WATCH IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY

This Afternoon
WNW wind 6 to 9 kt. Mostly sunny. Seas around 3 ft.
Tonight
Variable winds less than 5 kt becoming ENE 6 to 11 kt in the evening. A chance of rain and snow after 4am. Seas around 2 ft.
Sunday
E wind 16 to 19 kt increasing to 19 to 22 kt in the afternoon. Winds could gust as high as 28 kt. Rain and snow likely before 10am, then snow. Seas 2 ft building to 4 ft.
Sunday Night
NE wind 23 to 26 kt becoming N 29 to 32 kt after midnight. Winds could gust as high as 42 kt. Snow. The snow could be heavy at times. Seas 4 ft building to 6 ft.
Monday
N wind 29 to 32 kt decreasing to 24 to 27 kt in the afternoon. Winds could gust as high as 43 kt. Snow. The snow could be heavy at times. Seas 7 to 8 ft.
Monday Night
NW wind 18 to 20 kt. Cloudy, then gradually becoming partly cloudy. Seas 7 ft subsiding to 4 ft.
Tuesday
WNW wind 14 to 18 kt. Mostly sunny. Seas around 3 ft.
Tuesday Night
WNW wind 8 to 12 kt becoming SW after midnight. Mostly cloudy. Seas around 2 ft.
Wednesday
SSW wind 9 to 13 kt. A chance of snow. Seas 2 to 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: 3:41 am EST Feb 21, 2026
Forecast Valid: 12pm EST Feb 21, 2026-6pm EST Feb 27, 2026
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