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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Gray/Portland, ME Local Forecast Office

18NM S Portland ME

Marine Point Forecast

[NOTICE]
  • Tonight

    Partly Cloudy

    W 15kt
    3ftWaves Subsiding

    Low: 35 °F

    Small Craft Advisory
    Small Craft Advisory

  • Sunday

    Partly Sunny

    W 10ktWinds Decreasing
    1ft

    High: 42 °F

  • Sunday
    Night

    Mostly Cloudy

    Light Wind
    1ft

    Low: 30 °F

  • Monday

    Chance Rain/Snow

    ENE 10kt
    1-2ft

    High: 36 °F

  • Monday
    Night

    Rain/Snow

    E 15kt
    Waves Building4ft

    Low: 34 °F

  • Tuesday

    Rain

    Winds IncreasingS 20kt
    Waves Building12ft

    High: 45 °F

  • Tuesday
    Night

    Chance Showers

    SSW 20kt
    9ftWaves Subsiding

    Low: 37 °F

  • Wednesday

    Mostly Sunny

    W 20kt
    4-5ft

    High: 40 °F

  • Wednesday
    Night

    Partly Cloudy

    WNW 20kt
    3ft

    Low: 21 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:02 pm EST Jan 20, 2018
Forecast Valid: 8pm EST Jan 20, 2018-6pm EST Jan 27, 2018

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Detailed Forecast


Synopsis: ANZ100-211415- 703 PM EST Sat Jan 20 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A weak cold front will drop south from Canada tonight and will stall over southern New England Sunday and Sunday night. The front will lift north on Monday and Monday night as a warm front. Low pressure will track northeast through the ST Lawrence Valley on Tuesday and will drive a cold front through the region in the afternoon. A trough of low pressure will linger over the region Tuesday night and Wednesday. High pressure will gradually build in from the west Wednesday through Friday. $$

Tonight
W wind 10 to 15 kt. Partly cloudy. Seas 3 ft subsiding to 1 ft.
Sunday
W wind 5 to 10 kt becoming variable and less than 5 kt in the afternoon. Partly sunny. Seas around 1 ft.
Sunday Night
Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.
Monday
ENE wind 5 to 10 kt. A chance of rain and snow between 1pm and 3pm, then a chance of snow after 3pm. Seas 1 to 2 ft.
Monday Night
E wind 10 to 15 kt. Rain and snow, becoming all rain after 11pm. Seas 2 ft building to 4 ft.
Tuesday
ESE wind 15 to 18 kt becoming S 17 to 20 kt in the afternoon. Winds could gust as high as 30 kt. Rain. Seas 5 ft building to 12 ft.
Tuesday Night
SSW wind 15 to 20 kt becoming WSW after midnight. A chance of showers. Seas 9 ft subsiding to 6 ft.
Wednesday
W wind around 20 kt, with gusts as high as 30 kt. Mostly sunny. Seas 4 to 5 ft.
Wednesday Night
WNW wind 15 to 20 kt, with gusts as high as 30 kt. Partly 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: 43.36°N 70.28°W
Last Update: 7:02 pm EST Jan 20, 2018
Forecast Valid: 8pm EST Jan 20, 2018-6pm EST Jan 27, 2018
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