Widespread Summer Heat; Multiple Spots For Severe Weather

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, south-central Plains, Mid to Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, severe thunderstorms are possible from the Mid-Atlantic to the Ohio Valley and central Plains.
Read More...

Hazardous Weather Conditions

For More Weather Information:

Gray/Portland, ME Local Forecast Office

20NM ENE Portsmouth NH

Marine Point Forecast

[NOTICE]
  • Tonight

    Mostly Clear

    S 10kt
    2ft

    Low: 63 °F

  • Wednesday

    Heavy Rain

    S 10kt
    2ft

    High: 68 °F

  • Wednesday
    Night

    Chance Showers

    SSW 15kt
    2-3ft

    Low: 66 °F

  • Thursday

    Mostly Sunny

    SW 10kt
    3ft

    High: 80 °F

  • Thursday
    Night

    Partly Cloudy

    W 10kt
    2-3ft

    Low: 59 °F

  • Friday

    Mostly Sunny

    W 10kt
    2ft

    High: 71 °F

  • Friday
    Night

    Mostly Clear

    NW 10kt
    2ft

    Low: 61 °F

  • Saturday

    Sunny

    N 10kt
    2ft

    High: 68 °F

  • Saturday
    Night

    Partly Cloudy

    NNE 10kt
    1ft

    Low: 61 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:17 pm EDT Aug 20, 2019
Forecast Valid: 9pm EDT Aug 20, 2019-6pm EDT Aug 27, 2019

View Nearby Observations

Detailed Forecast


Synopsis: ANZ100-211215- 608 PM EDT Tue Aug 20 2019 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... High pressure will remain nearby tonight as a warm front gradually moves toward the waters from the southwest. This warm front will move over the local waters on Wednesday along with a good chance of showers and thunderstorms. A cold front moves across the waters Thursday morning with high pressure and fair weather moving in for Friday and the weekend. && $$

Tonight
S wind around 10 kt. Mostly clear. Seas around 2 ft.
Wednesday
S wind around 10 kt. Showers likely and possibly a thunderstorm, mainly after 5pm. Some of the storms could produce gusty winds and heavy rain. Seas around 2 ft.
Wednesday Night
SSW wind around 15 kt. A chance of showers before 2am. Areas of fog. Seas 2 to 3 ft.
Thursday
SW wind around 10 kt. Mostly sunny. Seas around 3 ft.
Thursday Night
W wind around 10 kt. Partly cloudy. Seas 2 to 3 ft.
Friday
W wind around 10 kt. Mostly sunny. Seas around 2 ft.
Friday Night
NW wind around 10 kt. Mostly clear. Seas around 2 ft.
Saturday
N wind 5 to 10 kt becoming ENE in the afternoon. Sunny. Seas around 2 ft.
Saturday Night
ESE wind 5 to 10 kt becoming NNE after midnight. Partly cloudy. 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.
  Select Another Point

ABOUT THIS FORECAST

Point Forecast: 43.17°N 70.36°W
Last Update: 6:17 pm EDT Aug 20, 2019
Forecast Valid: 9pm EDT Aug 20, 2019-6pm EDT Aug 27, 2019
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

Link to Local Radar Data Link to Satellite Data