Powerful Storm to Impact Eastern Third of U.S. this weekend.

A developing storm system will bring a myriad of significant impacts this weekend. Heavy snow up to 18 inches from the Ohio Valley to the Northeast, and ice up to a quarter of an inch is forecast in places. Heavy rain may cause flash flooding from the Mid-South to the Mid-Atlantic. Severe thunderstorms with damaging winds and isolated tornadoes will be possible in the Deep South.
Read More...

For More Weather Information:

Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]
  • Overnight

    Mostly Clear

    NNW 15kt
    2ft

    Low: 22 °F

    Small Craft Advisory
    Small Craft Advisory

  • Saturday

    Chance Snow

    N 15kt
    2ft

    High: 26 °F

    Small Craft Advisory
    Small Craft Advisory

  • Saturday
    Night

    Heavy Snow

    Winds IncreasingENE 25kt
    Waves Building8ft

    Low: 21 °F

  • Sunday

    Snow/Sleet

    ENE 30ktWinds Decreasing
    Waves Building12ft

    High: 31 °F

  • Sunday
    Night

    Chance Snow

    NNW 25kt
    9ftWaves Subsiding

    Low: 10 °F

  • M.L.King
    Day

    Mostly Cloudy

    NW 25kt
    4-5ft

    High: 15 °F

  • Monday
    Night

    Partly Cloudy

    NW 25kt
    3-4ft

    Low: 8 °F

  • Tuesday

    Sunny

    NW 20kt
    2-3ft

    High: 29 °F

  • Tuesday
    Night

    Mostly Cloudy

    SW 15kt
    1-2ft

    Low: 25 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:51 pm EST Jan 18, 2019
Forecast Valid: 3am EST Jan 19, 2019-6pm EST Jan 25, 2019

View Nearby Observations

Detailed Forecast


Synopsis: ANZ100-191615- 904 PM EST Fri Jan 18 2019 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A fresh cold air mass will move into the region this evening with increasing northwest winds. This sets the stage for a strong storm developing off the East Coast. This will track near the northern New England coastline this weekend bringing the potential for gale or even possibly storm force winds to the waters. Arctic air will move in to start the week. && $$

Overnight
NNW wind around 15 kt, with gusts as high as 20 kt. Mostly clear. Seas around 2 ft.
Saturday
N wind 10 to 15 kt becoming NE in the afternoon. A chance of snow after 5pm. Seas around 2 ft.
Saturday Night
ENE wind 15 to 20 kt increasing to 20 to 25 kt. Winds could gust as high as 35 kt. Snow, mainly after 8pm. The snow could be heavy at times. Seas 3 ft building to 8 ft.
Sunday
ENE wind 25 to 30 kt becoming N 20 to 25 kt in the afternoon. Winds could gust as high as 40 kt. Snow and sleet, becoming all snow after 3pm. Seas 10 ft building to 12 ft.
Sunday Night
NNW wind around 25 kt, with gusts as high as 35 kt. A chance of snow. Seas 9 ft subsiding to 6 ft.
M.L.King Day
NW wind 20 to 25 kt. Mostly cloudy. Seas 4 to 5 ft.
Monday Night
NW wind 20 to 25 kt, with gusts as high as 30 kt. Partly cloudy. Seas 3 to 4 ft.
Tuesday
NW wind 15 to 20 kt, with gusts as high as 30 kt. Sunny. Seas 2 to 3 ft.
Tuesday Night
W wind around 15 kt becoming SW after midnight. Winds could gust as high as 25 kt. Mostly cloudy. Seas 1 to 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.
  Select Another Point

ABOUT THIS FORECAST

Point Forecast: 42.99°N 70.62°W
Last Update: 10:51 pm EST Jan 18, 2019
Forecast Valid: 3am EST Jan 19, 2019-6pm EST Jan 25, 2019
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

Link to Local Radar Data Link to Satellite Data