Wet Pattern Continues From the Northwest To Rockies; Major Storm System To Develop On Thursday Across Southern Plains

A vigorous system will slide from the Northwest to the Rockies on Wednesday to keep intact the wet pattern across the extended region. Heavy to excessive rain, intense mountain snow and high winds are possible before the next system arrives on Friday. The same system will evolve into a major storm on Thursday across the southern Plains for a widespread rain event for the South and East.

For More Weather Information:

Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Point Forecast

  • Tonight

    Mostly Cloudy

    WNW 10kt

    Low: 28 °F

  • Wednesday

    Partly Sunny

    Winds IncreasingN 20kt

    High: 31 °F

  • Wednesday

    Mostly Clear

    N 20ktWinds Decreasing

    Low: 19 °F

  • Thursday


    N 10kt

    High: 34 °F

  • Thursday

    Partly Cloudy

    SW 10kt

    Low: 28 °F

  • Friday

    Mostly Sunny

    SSW 10kt

    High: 45 °F

  • Friday

    Chance Rain

    S 15kt

    Low: 41 °F

  • Saturday

    Chance Rain

    SE 15kt

    High: 46 °F

  • Saturday

    Chance Showers

    ENE 20kt
    Waves Building5ft

    Low: 39 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:10 pm EST Dec 11, 2018
Forecast Valid: 10pm EST Dec 11, 2018-6pm EST Dec 18, 2018

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Detailed Forecast

Synopsis: ANZ100-121430- 730 PM EST Tue Dec 11 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... Weak low pressure over the Gulf of Maine tonight exits early Wednesday as a cold front moves through the waters. High pressure builds in Thursday. && $$

W wind around 10 kt becoming NNW after midnight. Mostly cloudy. Seas 2 to 3 ft.
N wind 10 to 15 kt increasing to 15 to 20 kt in the afternoon. Partly sunny. Seas around 4 ft.
Wednesday Night
N wind 15 to 20 kt decreasing to 10 to 15 kt after midnight. Mostly clear. Seas around 4 ft.
N wind 5 to 10 kt. Sunny. Seas around 3 ft.
Thursday Night
SW wind around 10 kt. Partly cloudy. Seas 2 to 3 ft.
SSW wind around 10 kt. Mostly sunny. Seas around 2 ft.
Friday Night
S wind 10 to 15 kt. A chance of rain. Seas 1 to 2 ft.
SE wind 10 to 15 kt, with gusts as high as 25 kt. A chance of rain. Seas 2 to 3 ft.
Saturday Night
ENE wind 15 to 20 kt, with gusts as high as 35 kt. A chance of showers. Seas 3 ft building to 5 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: 7:10 pm EST Dec 11, 2018
Forecast Valid: 10pm EST Dec 11, 2018-6pm EST Dec 18, 2018
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