Mountain Snow Continues in the Southwest While Ice and Snow Fall From the Mid-Atlantic to the Northeast

A storm shifting into the Four Corners region will produce heavy mountain snow into Monday. An eastern storm will track across the Mid-Atlantic region through early Monday with a swath of ice and snow extending into the Northeast. Tuesday into Wednesday, a stronger eastern storm is forecast to impact the eastern half of the U.S. with areas of excessive rain, heavy snow and ice.
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Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]
  • Washington's
    Birthday

    Snow

    Winds IncreasingENE 30km/h
    1m

    High: 0 °C

    Small Craft Advisory
    Small Craft Advisory

  • Tonight

    Chance Snow

    Winds IncreasingNW 30km/h
    1m

    Low: -8 °C

    Small Craft Advisory
    Small Craft Advisory

  • Tuesday

    Sunny

    WNW 30km/h
    1m

    High: -3 °C

    Small Craft Advisory
    Small Craft Advisory

  • Tuesday
    Night

    Mostly Clear

    WNW 25km/hWinds Decreasing
    < 1m

    Low: -9 °C

  • Wednesday

    Mostly Sunny

    NW 15km/h
    < 1m

    High: -2 °C

  • Wednesday
    Night

    Rain/Snow

    Winds IncreasingSSE 25km/h
    < 1m

    Low: -4 °C

  • Thursday

    Snow/Sleet

    SE 30km/hWinds Decreasing
    1m

    High: 5 °C

  • Thursday
    Night

    Partly Cloudy

    NW 30km/h
    1m

    Low: -1 °C

  • Friday

    Sunny

    WNW 25km/h
    < 1m

    High: 4 °C


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:40 am EST Feb 18, 2019
Forecast Valid: 5am EST Feb 18, 2019-6pm EST Feb 24, 2019

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Detailed Forecast


Synopsis: ANZ100-182215- 307 AM EST Mon Feb 18 2019 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... Low pressure passes south of the waters today. High pressure builds over the waters Tuesday and Wednesday. Southerly flow increases Wednesday night into Thursday morning ahead of approaching low pressure from the west. High pressure to follow on Friday. && $$

Washington's Birthday
ENE wind 20 to 25 km/h becoming ENE 25 to 30 km/h in the morning. Winds could gust as high as 40 km/h. Snow, mainly before 5pm. Seas around 1 m.
Tonight
N wind 25 to 28 km/h becoming NW 27 to 30 km/h after midnight. Winds could gust as high as 45 km/h. A chance of snow showers before 7pm. Seas around 1 m.
Tuesday
WNW wind 25 to 30 km/h, with gusts as high as 40 km/h. Sunny. Seas around 1 m.
Tuesday Night
WNW wind 22 to 25 km/h decreasing to 20 to 23 km/h after midnight. Winds could gust as high as 40 km/h. Mostly clear. Seas 1 m or less.
Wednesday
NW wind 10 to 15 km/h becoming W in the afternoon. Mostly sunny. Seas 1 m or less.
Wednesday Night
SW wind 15 to 20 km/h becoming SSE 20 to 25 km/h in the evening. Winds could gust as high as 40 km/h. Snow before 5am, then rain and snow. Seas 1 m or less.
Thursday
SE wind 25 to 30 km/h becoming W 20 to 25 km/h in the morning. Winds could gust as high as 40 km/h. Rain showers, snow, and sleet, becoming all rain after 10am. Seas around 1 m.
Thursday Night
NW wind around 30 km/h, with gusts as high as 45 km/h. Partly cloudy. Seas around 1 m.
Friday
WNW wind 20 to 25 km/h, with gusts as high as 35 km/h. Sunny. Seas 1 m or less.

*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: 42.99°N 70.62°W
Last Update: 2:40 am EST Feb 18, 2019
Forecast Valid: 5am EST Feb 18, 2019-6pm EST Feb 24, 2019
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