Heavy Rain and Snowmelt Threatens Flooding in Southeast and Mid-Atlantic; Strong Cold Front Presses Across the Northwest

A southern storm system will bring heavy to excessive rain from the Southeast to the Mid-Atlantic through Saturday with a secondary heavy rain threat area from the Lower Mississippi Valley into the Ohio Valley. Out West, a strong cold front will continue rain, mountain snow and gusty winds into Saturday morning. Another front will bring more unsettled weather to the region by Sunday.
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Gray/Portland, ME Local Forecast Office

18NM S Portland ME

Marine Point Forecast

[NOTICE]
  • Today

    Mostly Sunny

    WSW 10kt
    1-2ft

    High: 49 °F

  • Tonight

    Mostly Clear

    NNE 15kt
    2-3ft

    Low: 30 °F

  • Sunday

    Partly Sunny

    NE 15kt
    3-4ft

    High: 40 °F

  • Sunday
    Night

    Rain Likely

    NE 15kt
    Waves Building7ft

    Low: 36 °F

  • Monday

    Rain/Snow Likely

    NNE 15ktWinds Decreasing
    7-8ft

    High: 39 °F

  • Monday
    Night

    Snow Likely

    Winds IncreasingNW 20kt
    5-6ft

    Low: 29 °F

  • Tuesday

    Mostly Sunny

    NW 25kt
    3-4ft

    High: 32 °F

  • Tuesday
    Night

    Mostly Clear

    NW 20kt
    1-2ft

    Low: 23 °F

  • Wednesday

    Sunny

    W 10kt
    1ft

    High: 36 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:59 am EST Dec 15, 2018
Forecast Valid: 6am EST Dec 15, 2018-6pm EST Dec 21, 2018

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Detailed Forecast


Synopsis: ANZ100-152145- 237 AM EST Sat Dec 15 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... Winds shift to the west and decrease behind a cold front today before shifting to the north as high pressure slides east into northern Maine tonight. Low pressure emerges off the Mid Atlantic coast and tracks near Cape Cod Sunday into Sunday night with an easterly wind developing over the Gulf of Maine, shifting to the north on Monday. Winds increase Monday night as an Arctic cold front drops in from the northwest. && $$

Today
WSW wind around 10 kt becoming N in the afternoon. Mostly sunny. Seas 1 to 2 ft.
Tonight
NNE wind 10 to 15 kt. Mostly clear. Seas 2 to 3 ft.
Sunday
NE wind 10 to 15 kt. Partly sunny. Seas 3 to 4 ft.
Sunday Night
NE wind around 15 kt, with gusts as high as 20 kt. Rain likely, mainly after 2am. Seas 4 ft building to 7 ft.
Monday
NNE wind 12 to 15 kt becoming NNW 10 to 13 kt in the afternoon. Winds could gust as high as 25 kt. Rain and snow likely before 8am, then rain likely between 8am and 5pm, then rain and snow likely after 5pm. Seas 7 to 8 ft.
Monday Night
NW wind 15 to 18 kt increasing to 17 to 20 kt after midnight. Winds could gust as high as 30 kt. Snow showers likely, mainly before 7pm. Seas 5 to 6 ft.
Tuesday
NW wind 20 to 25 kt, with gusts as high as 30 kt. Mostly sunny. Seas 3 to 4 ft.
Tuesday Night
NW wind 15 to 20 kt. Mostly clear. Seas 1 to 2 ft.
Wednesday
NW wind around 10 kt becoming W in the morning. Sunny. Seas around 1 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: 43.36°N 70.28°W
Last Update: 2:59 am EST Dec 15, 2018
Forecast Valid: 6am EST Dec 15, 2018-6pm EST Dec 21, 2018
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