Active Weather Pattern in the West and into the Central U.S.

A series of weather systems will bring locally heavy rain, 1 to 3 feet of mountain snow, and strong winds up to 75 mph across the western states. Later this weekend and early next week, a strong low pressure system will spread wintry conditions and strong winds from the Plains into the Upper Midwest. Strengthening winds in the Southern Plains will increase fire weather threats. Warmer in the east.
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Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Point Forecast

[NOTICE]
  • This
    Afternoon

    Sunny

    NNW 20km/h
    1m

    High: 1 °C

    Small Craft Advisory
    Small Craft Advisory

  • Tonight

    Increasing Clouds

    NNW 25km/hWinds Decreasing
    1m

    Low: -3 °C

  • Friday

    Decreasing Clouds

    WNW 15km/h
    1m

    High: 1 °C

  • Friday
    Night

    Partly Cloudy

    Winds IncreasingSW 30km/h
    1m

    Low: 0 °C

  • Saturday

    Partly Sunny

    SW 35km/h
    1-2m

    High: 7 °C

  • Saturday
    Night

    Partly Cloudy

    W 30km/hWinds Decreasing
    1m

    Low: 2 °C

  • Sunday

    Partly Sunny

    W 25km/hWinds Decreasing
    < 1m

    High: 5 °C

  • Sunday
    Night

    Partly Cloudy

    Winds IncreasingNNE 25km/h
    < 1m

    Low: -1 °C

  • Monday

    Mostly Cloudy

    ENE 25km/h
    1m

    High: 3 °C


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:32 am EST Jan 18, 2018
Forecast Valid: 1pm EST Jan 18, 2018-6pm EST Jan 24, 2018

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Detailed Forecast


Synopsis: ANZ100-190745- 1233 PM EST Thu Jan 18 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... High pressure builds to the south of the waters into the weekend. Low pressure approaches from the west early next week. $$

This Afternoon
NNW wind around 20 km/h, with gusts as high as 30 km/h. Sunny. Seas around 1 m.
Tonight
NNW wind 22 to 25 km/h decreasing to 20 to 23 km/h after midnight. Winds could gust as high as 35 km/h. Increasing clouds. Seas around 1 m.
Friday
WNW wind around 15 km/h becoming W in the afternoon. Mostly cloudy, then gradually becoming sunny. Seas around 1 m.
Friday Night
SW wind 20 to 25 km/h increasing to 25 to 30 km/h after midnight. Winds could gust as high as 40 km/h. Partly cloudy. Seas around 1 m.
Saturday
SW wind around 35 km/h, with gusts as high as 45 km/h. Partly sunny. Seas 1 to 2 m.
Saturday Night
W wind 27 to 30 km/h decreasing to 25 to 28 km/h after midnight. Winds could gust as high as 45 km/h. Partly cloudy. Seas around 1 m.
Sunday
W wind 20 to 25 km/h decreasing to 15 to 20 km/h in the afternoon. Winds could gust as high as 35 km/h. Partly sunny. Seas 1 m or less.
Sunday Night
NW wind 15 to 20 km/h becoming NNE 20 to 25 km/h in the evening. Winds could gust as high as 35 km/h. Partly cloudy. Seas 1 m or less.
Monday
ENE wind 20 to 25 km/h becoming ESE in the afternoon. Winds could gust as high as 35 km/h. Mostly cloudy. Seas around 1 m.

*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: 10:32 am EST Jan 18, 2018
Forecast Valid: 1pm EST Jan 18, 2018-6pm EST Jan 24, 2018
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