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.

For More Weather Information:

Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Point Forecast

  • This

    Partly Sunny

    WNW 10kt

    High: 46 °F

  • Tonight

    Mostly Cloudy

    Light Wind

    Low: 33 °F

  • Monday

    Chance Rain/Snow

    Winds IncreasingENE 15kt

    High: 39 °F

  • Monday


    E 15kt
    Waves Building4ft

    Low: 34 °F

  • Tuesday


    Winds IncreasingS 25kt
    Waves Building10ft

    High: 50 °F

  • Tuesday

    Showers Likely

    SSW 20kt
    8ftWaves Subsiding

    Low: 38 °F

  • Wednesday

    Mostly Sunny

    WNW 25kt

    High: 40 °F

  • Wednesday

    Partly Cloudy

    WNW 25kt

    Low: 22 °F

  • Thursday

    Mostly Sunny

    WNW 20kt

    High: 26 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:13 am EST Jan 21, 2018
Forecast Valid: 12pm EST Jan 21, 2018-6pm EST Jan 27, 2018

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Detailed Forecast

Synopsis: ANZ100-220615- 1111 AM EST Sun Jan 21 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A weak cold front will drop south into the Gulf of Maine today and tonight, stalling over southern New England. It will lift northward as a warm front on Monday night into Tuesday with southerly gales expected behind it. Low pressure moves east along the coastline, dragging a cold front behind it Tuesday night. High pressure slowly builds in from the west for the rest of the week. $$

This Afternoon
WNW wind 5 to 10 kt. Partly sunny. Seas around 1 ft.
Variable winds 5 kt or less. Mostly cloudy. Seas around 1 ft.
ENE wind 5 to 10 kt increasing to 10 to 15 kt in the afternoon. Winds could gust as high as 25 kt. A chance of snow between 1pm and 5pm, then a chance of rain after 5pm. Seas 1 to 2 ft.
Monday Night
E wind 10 to 15 kt becoming SE after midnight. Winds could gust as high as 25 kt. Rain and snow, becoming all rain after 2am. Seas 2 ft building to 4 ft.
S wind 10 to 15 kt increasing to 20 to 25 kt. Winds could gust as high as 35 kt. Rain. Seas 6 ft building to 10 ft.
Tuesday Night
SSW wind around 20 kt becoming WSW after midnight. Winds could gust as high as 30 kt. Showers likely, mainly before 7pm. Seas 8 ft subsiding to 6 ft.
WSW wind 20 to 25 kt becoming WNW in the afternoon. Winds could gust as high as 35 kt. Mostly sunny. Seas 4 to 5 ft.
Wednesday Night
WNW wind 20 to 25 kt, with gusts as high as 35 kt. Partly cloudy. Seas around 3 ft.
WNW wind around 20 kt, with gusts as high as 30 kt. Mostly sunny. Seas around 3 ft.


  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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Point Forecast: 43.18°N 70.24°W
Last Update: 8:13 am EST Jan 21, 2018
Forecast Valid: 12pm EST Jan 21, 2018-6pm EST Jan 27, 2018
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