Unsettled Week From Northwest To Rockies; A Major Wet Storm System Over the East Late This Week

An active wet weather pattern will impact the Pacific Northwest into Inter-mountain West and Rockies, as two more storm systems arrive before the weekend. Expect heavy to excessive rain and widespread mountain snow. A couple of these systems will combine and evolve into a major very wet storm system with heavy to excessive rain, Thursday into the weekend, for the eastern half of the country.
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Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Point Forecast

[NOTICE]
  • Overnight

    Mostly Clear

    NNE 10kt
    1ft

    Low: 23 °F

  • Tuesday

    Mostly Sunny

    SW 10kt
    1-2ft

    High: 34 °F

  • Tuesday
    Night

    Mostly Cloudy

    Winds IncreasingN 15kt
    2ft

    Low: 27 °F

  • Wednesday

    Mostly Sunny

    N 20kt
    Waves Building4ft

    High: 31 °F

  • Wednesday
    Night

    Mostly Clear

    N 20ktWinds Decreasing
    3-4ft

    Low: 18 °F

  • Thursday

    Mostly Sunny

    SW 10kt
    2-3ft

    High: 35 °F

  • Thursday
    Night

    Mostly Cloudy

    SW 15kt
    2ft

    Low: 32 °F

  • Friday

    Partly Sunny

    SSW 10kt
    2-3ft

    High: 45 °F

  • Friday
    Night

    Chance Rain

    S 15kt
    3ft

    Low: 41 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:45 pm EST Dec 10, 2018
Forecast Valid: 2am EST Dec 11, 2018-6pm EST Dec 17, 2018

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Detailed Forecast


Synopsis: ANZ100-111630- 919 PM EST Mon Dec 10 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A ridge of high pressure will build into the region tonight into Tuesday. Another cold front will cross the waters Tuesday night followed by high pressure for Wednesday and Thursday. Low pressure begins to approach from the south on Friday, before tracking south of the waters on Saturday. && $$

Overnight
NNE wind around 10 kt. Mostly clear. Seas around 1 ft.
Tuesday
NE wind 5 to 10 kt becoming SW in the afternoon. Mostly sunny. Seas 1 to 2 ft.
Tuesday Night
W wind 10 to 13 kt becoming N 12 to 15 kt after midnight. Mostly cloudy. Seas around 2 ft.
Wednesday
N wind 15 to 20 kt. Mostly sunny. Seas 2 ft building to 4 ft.
Wednesday Night
N wind 15 to 20 kt decreasing to 10 to 15 kt after midnight. Mostly clear. Seas 3 to 4 ft.
Thursday
N wind around 10 kt becoming SW in the afternoon. Mostly sunny. Seas 2 to 3 ft.
Thursday Night
SW wind 10 to 15 kt. Mostly cloudy. Seas around 2 ft.
Friday
SW wind around 10 kt becoming S in the afternoon. Partly sunny. Seas 2 to 3 ft.
Friday Night
S wind around 15 kt. A chance of rain. 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: 11:45 pm EST Dec 10, 2018
Forecast Valid: 2am EST Dec 11, 2018-6pm EST Dec 17, 2018
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