Significant winter storm to bring heavy snow and ice from the Plains to the upper Midwest, Great Lakes and New England

A strong low pressure system will bring heavy snow, ice, and strong winds from the Plains to the upper Midwest, and western Great Lakes through tonight. Treacherous travel conditions are expected. Wintry precipitation will expand into portions of New England Tuesday into Tuesday night. An inclement pattern will also persist from northern California to the Pacific Northwest into the weekend.

For More Weather Information:

Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Point Forecast

  • Tonight


    E 15ktWinds Decreasing

    Low: 38 °F

  • Tuesday


    Winds IncreasingS 30kt
    Waves Building12ft

    High: 45 °F

    Gale Warning
    Gale Warning

  • Tuesday

    Chance Showers

    WSW 20kt
    9ftWaves Subsiding

    Low: 37 °F

    Gale Warning
    Gale Warning

  • Wednesday


    W 20kt

    High: 39 °F

  • Wednesday

    Partly Cloudy

    NW 20kt

    Low: 20 °F

  • Thursday

    Mostly Sunny

    NW 20kt

    High: 25 °F

  • Thursday

    Mostly Clear

    NW 20kt

    Low: 16 °F

  • Friday


    NW 15kt

    High: 30 °F

  • Friday

    Mostly Clear

    SW 10kt
    Waves Building3ft

    Low: 26 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:53 pm EST Jan 22, 2018
Forecast Valid: 7pm EST Jan 22, 2018-6pm EST Jan 29, 2018

View Nearby Observations

Detailed Forecast

Synopsis: ANZ100-231000- 254 PM EST Mon Jan 22 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A frontal boundary will lift back north across the waters as a warm front tonight. Low pressure tracks east along this front near or just inland of the Maine coastline on Tuesday...with a trailing cold front. High pressure will slowly build in from the west Wednesday through Friday...with westerly flow over the waters. $$

E wind 10 to 15 kt becoming E 5 to 8 kt after midnight. Drizzle, mainly before 3am. Patchy dense fog after 11pm. Seas 4 to 5 ft.
S wind 10 to 15 kt increasing to 25 to 30 kt. Winds could gust as high as 40 kt. Rain. Widespread fog, mainly before 10am. Seas 4 ft building to 12 ft.
Tuesday Night
S wind 15 to 20 kt becoming WSW after midnight. Winds could gust as high as 30 kt. A chance of showers before 9pm. Seas 9 ft subsiding to 6 ft.
W wind around 20 kt, with gusts as high as 30 kt. Sunny. Seas around 5 ft.
Wednesday Night
NW wind 15 to 20 kt, with gusts as high as 30 kt. Partly cloudy. Seas 3 to 4 ft.
NW wind 15 to 20 kt. Mostly sunny. Seas around 3 ft.
Thursday Night
NW wind 15 to 20 kt, with gusts as high as 30 kt. Mostly clear. Seas around 3 ft.
NW wind 10 to 15 kt. Sunny. Seas 1 to 2 ft.
Friday Night
WNW wind around 10 kt becoming SW after midnight. Mostly clear. Seas 1 ft building to 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: 5:53 pm EST Jan 22, 2018
Forecast Valid: 7pm EST Jan 22, 2018-6pm EST Jan 29, 2018
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