Heavy Snow & Ice Across Portions of the Plains and Midwest; Unsettled in the Pacific Northwest

Heavy snow and freezing rain will impact portions of the Plains, upper Midwest, and Great Lakes into Monday. Significant snow accumulations and gusty winds are likely in some areas. Farther to the south, rain and a few thunderstorms are expected over the Mississippi, Tennessee, and Ohio Valleys. Heavy rain & mountain snowfall will also continue from northern California into the Pacific Northwest.
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New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]
  • Overnight

    Partly Cloudy

    W 13km/h
    < 1m
  • Sunday

    Mostly Sunny

    WNW 10km/h
    < 1m
  • Sunday
    Night

    Slight Chc Rain

    Winds IncreasingW 11km/h
    < 1m
  • Monday

    Chance Rain

    E 11km/h
    < 1m
  • Monday
    Night

    Showers Likely

    SSE 18km/h
    < 1m
  • Tuesday

    Showers

    S 27km/h
    < 1m
  • Tuesday
    Night

    Decreasing Clouds

    W 26km/h
    < 1m
  • Wednesday

    Mostly Sunny

    W 26km/h
    1m
  • Wednesday
    Night

    Mostly Clear

    WNW 24km/hWinds Decreasing
    < 1m

Associated Zone Forecast which includes this point

Last Update: 9:16 pm EST Jan 20, 2018
Forecast Valid: 12am EST Jan 21, 2018-6pm EST Jan 27, 2018

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Detailed Forecast


Synopsis: ANZ300-211515- 917 PM EST Sat Jan 20 2018 .Synopsis for the Long Island Waters and New York Harbor... High pressure remains south of the waters through the weekend. A warm front approaches Sunday night and moves through the area late Monday into Monday night. A cold front the moves across the waters on Tuesday. High pressure builds over the area Wednesday through Friday and moves offshore Saturday. $$

Overnight
W wind 10 to 13 km/h. Partly cloudy. Seas 1 m or less.
Sunday
WNW wind 8 to 10 km/h. Mostly sunny. Seas 1 m or less.
Sunday Night
WSW wind 5 to 8 km/h becoming W 8 to 11 km/h after midnight. A slight chance of rain after midnight. Seas 1 m or less.
Monday
NNE wind 8 to 11 km/h becoming E in the afternoon. A chance of rain. Areas of fog. Seas 1 m or less.
Monday Night
E wind 14 to 18 km/h becoming SSE after midnight. Showers likely, mainly after 2am. Seas 1 m or less.
Tuesday
S wind 24 to 27 km/h becoming SW in the afternoon. Winds could gust as high as 42 km/h. Showers, mainly before 3pm. Seas 1 m or less.
Tuesday Night
W wind 23 to 26 km/h, with gusts as high as 35 km/h. Cloudy, then gradually becoming partly cloudy. Seas 1 m or less.
Wednesday
W wind 24 to 26 km/h, with gusts as high as 45 km/h. Mostly sunny. Seas around 1 m.
Wednesday Night
WNW wind 21 to 24 km/h decreasing to 18 to 21 km/h after midnight. Winds could gust as high as 40 km/h. Mostly clear. Seas 1 m 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: 40.91°N 73.39°W
Last Update: 9:16 pm EST Jan 20, 2018
Forecast Valid: 12am EST Jan 21, 2018-6pm EST Jan 27, 2018
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