Major Winter Storm System Will Bring A Variety Of Impacts To The Central, Southern, And Eastern U.S. Through The Weekend

An impactful winter storm will track from the Plains to New England through Sunday, with bitter cold behind it. Heavy snow is likely from the Corn Belt to interior Northeast, with significant ice accumulations in the Ohio Valley and New England. Farther south, heavy rain could lead to flooding in the Tennessee Valley on Saturday, with isolated severe thunderstorms in the lower Mississippi Valley.
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Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Point Forecast

[NOTICE]
  • Today

    Chance Rain/Snow

    S 10kt
    2-3ft

    High: 39 °F

  • Tonight

    Partly Cloudy

    NW 20kt
    3ft

    Low: 20 °F

    Small Craft Advisory
    Small Craft Advisory

  • Saturday

    Increasing Clouds

    N 15ktWinds Decreasing
    2-3ft

    High: 26 °F

    Small Craft Advisory
    Small Craft Advisory

  • Saturday
    Night

    Heavy Snow

    Winds IncreasingENE 25kt
    Waves Building9ft

    Low: 22 °F

  • Sunday

    Snow/Sleet

    ENE 30kt
    Waves Building13ft

    High: 32 °F

  • Sunday
    Night

    Snow Likely

    NNW 30kt
    10ftWaves Subsiding

    Low: 14 °F

  • M.L.King
    Day

    Chance Snow

    NNW 25kt
    6ft

    High: 17 °F

  • Monday
    Night

    Mostly Cloudy

    NW 25kt
    4-5ft

    Low: 11 °F

  • Tuesday

    Mostly Sunny

    NW 20kt
    3ft

    High: 30 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:32 am EST Jan 18, 2019
Forecast Valid: 11am EST Jan 18, 2019-6pm EST Jan 24, 2019

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Detailed Forecast


Synopsis: ANZ100-190545- 1031 AM EST Fri Jan 18 2019 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A fresh cold air mass will move into the region this afternoon with increasing northwest winds. This sets the stage for a strong storm developing off the East Coast. This will track near the northern New England coastline this weekend bringing the potential for gale or even possibly storm force winds to the waters. Arctic air will move in to start the week. && $$

Today
S wind around 10 kt. A chance of snow, possibly mixing with rain after noon, then gradually ending. Seas 2 to 3 ft.
Tonight
SW wind 15 to 20 kt becoming NNW after midnight. Partly cloudy. Seas around 3 ft.
Saturday
N wind 12 to 15 kt becoming NE 10 to 13 kt in the afternoon. Winds could gust as high as 25 kt. Increasing clouds. Seas 2 to 3 ft.
Saturday Night
ENE wind 15 to 20 kt increasing to 20 to 25 kt after midnight. Winds could gust as high as 30 kt. Snow, mainly after 10pm. The snow could be heavy at times. Seas 3 ft building to 9 ft.
Sunday
ENE wind 25 to 30 kt becoming N in the afternoon. Winds could gust as high as 40 kt. Snow, possibly mixed with sleet, becoming all snow after 2pm. Seas 11 ft building to 13 ft.
Sunday Night
NNW wind 25 to 30 kt. Snow likely, mainly before 9pm. Seas 10 ft subsiding to 7 ft.
M.L.King Day
NNW wind around 25 kt. A chance of snow showers. Seas around 6 ft.
Monday Night
NW wind 20 to 25 kt. Mostly cloudy. Seas 4 to 5 ft.
Tuesday
NW wind 15 to 20 kt becoming W in the afternoon. Mostly sunny. 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: 43.18°N 70.24°W
Last Update: 7:32 am EST Jan 18, 2019
Forecast Valid: 11am EST Jan 18, 2019-6pm EST Jan 24, 2019
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