Heavy Snow & Ice Across Portions of the Plains and Midwest; Unsettled in the Pacific Northwest

Heavy snow and freezing rain will impact portions of the Plains, upper Midwest, and Great Lakes into Monday. Significant snow accumulations and gusty winds are likely in some areas. Farther to the south, rain and a few thunderstorms are expected over the Mississippi, Tennessee, and Ohio Valleys. Heavy rain & mountain snowfall will also continue from northern California into the Pacific Northwest.
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Gray/Portland, ME Local Forecast Office

18NM S Portland ME

Marine Point Forecast

[NOTICE]
  • Overnight

    Cloudy

    Light Wind
    1ft

    Low: 36 °F

  • Monday

    Rain/Snow Likely

    Winds IncreasingNE 15kt
    Waves Building3ft

    High: 37 °F

  • Monday
    Night

    Rain/Snow

    NE 15ktWinds Decreasing
    3-4ft

    Low: 32 °F

  • Tuesday

    Rain

    Winds IncreasingS 25kt
    Waves Building9ft

    High: 44 °F

    Gale Warning
    Gale Warning

  • Tuesday
    Night

    Chance Showers

    WSW 15kt
    8ftWaves Subsiding

    Low: 36 °F

    Gale Warning
    Gale Warning

  • Wednesday

    Sunny

    WNW 20kt
    5ftWaves Subsiding

    High: 37 °F

  • Wednesday
    Night

    Partly Cloudy

    NW 15kt
    2-3ft

    Low: 19 °F

  • Thursday

    Mostly Sunny

    NW 15kt
    2ft

    High: 25 °F

  • Thursday
    Night

    Mostly Clear

    NW 15kt
    2ft

    Low: 15 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:55 am EST Jan 22, 2018
Forecast Valid: 4am EST Jan 22, 2018-6pm EST Jan 28, 2018

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Detailed Forecast


Synopsis: ANZ100-221700- 949 PM EST Sun Jan 21 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A stalled frontal boundary across southern New England will gradually lift north as a warm front late tonight through Monday night. Low pressure will track northeast out of the Great Lakes and into the St Lawrence Valley on Tuesday and will drive a cold front through the region late in the day. Low pressure will continue northeast into the maritimes Tuesday night. High pressure will slowly build in from the west Wednesday through Friday. $$

Overnight
Variable winds 5 kt or less. Cloudy. Seas around 1 ft.
Monday
E wind 5 to 8 kt becoming NE 10 to 15 kt in the afternoon. A chance of rain and snow before 11am, then snow likely. Seas 1 ft building to 3 ft.
Monday Night
NE wind 10 to 15 kt decreasing to 5 to 10 kt after midnight. Snow before 4am, then a chance of rain. Seas 3 to 4 ft.
Tuesday
NE wind 5 to 8 kt becoming S 20 to 25 kt. Winds could gust as high as 35 kt. Rain. Seas 4 ft building to 9 ft.
Tuesday Night
S wind 10 to 15 kt becoming W after midnight. Winds could gust as high as 25 kt. A chance of showers before 9pm. Seas 8 ft subsiding to 5 ft.
Wednesday
WNW wind 15 to 20 kt, with gusts as high as 25 kt. Sunny. Seas 5 ft subsiding to 3 ft.
Wednesday Night
NW wind around 15 kt, with gusts as high as 25 kt. Partly cloudy. Seas 2 to 3 ft.
Thursday
NW wind around 15 kt, with gusts as high as 20 kt. Mostly sunny. Seas around 2 ft.
Thursday Night
NW wind around 15 kt, with gusts as high as 25 kt. Mostly clear. Seas around 2 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: 2:55 am EST Jan 22, 2018
Forecast Valid: 4am EST Jan 22, 2018-6pm EST Jan 28, 2018
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