Widespread, Significant Severe Storms; Blistering Heat; Persistent Monsoon and Fire Weather Threats

A swath of severe weather is forecast from the Middle South to the Great Lakes. Very large hail, significant damaging winds, and tornadoes will be possible; especially; from northwestern Tennessee to southwestern Ohio. The south-central U.S. remains excessively hot, with Heat Indices over 110 degrees. Monsoon moisture continues threats of local flash floods, and dry thunderstorms in the west.
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Hazardous Weather Conditions

For More Weather Information:

Gray/Portland, ME Local Forecast Office

20NM ENE Portsmouth NH

Marine Point Forecast

[NOTICE]
  • Tonight

    Clear

    SSE 10kt
    2-3ft

    Low: 64 °F

  • Saturday

    Sunny

    E 10kt
    2ft

    High: 66 °F

  • Saturday
    Night

    Showers Likely

    E 10kt
    2-3ft

    Low: 64 °F

  • Sunday

    Heavy Rain

    Winds IncreasingSSE 20kt
    3-4ft

    High: 73 °F

  • Sunday
    Night

    Showers Likely

    SSE 15kt
    6-7ft

    Low: 68 °F

  • Monday

    Chance Showers

    S 15kt
    5ft

    High: 72 °F

  • Monday
    Night

    Chance Showers

    S 15kt
    4-5ft

    Low: 68 °F

  • Tuesday

    Chance Showers

    S 15kt
    4ft

    High: 73 °F

  • Tuesday
    Night

    Chance Showers

    S 15kt
    4-5ft

    Low: 67 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:02 pm EDT Jul 20, 2018
Forecast Valid: 7pm EDT Jul 20, 2018-6pm EDT Jul 27, 2018

View Nearby Observations

Detailed Forecast


Synopsis: ANZ100-210845- 243 PM EDT Fri Jul 20 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... High pressure over the waters will drift east tonight and Saturday. An area of low pressure with an associated warm front will approach from the south Saturday night and will lift north into the region on Sunday. A southerly warm and humid air mass will prevail behind the front early next week. $$

Tonight
SSE wind 5 to 10 kt. Clear. Seas 2 to 3 ft.
Saturday
E wind 5 to 10 kt. Sunny. Seas around 2 ft.
Saturday Night
E wind around 10 kt. Showers likely, mainly after 3am. Seas 2 to 3 ft.
Sunday
E wind 15 to 18 kt becoming SSE 17 to 20 kt in the afternoon. Winds could gust as high as 25 kt. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Seas 3 to 4 ft.
Sunday Night
SSE wind 10 to 15 kt. Showers likely and possibly a thunderstorm. Seas 6 to 7 ft.
Monday
S wind 10 to 15 kt. A chance of showers. Seas around 5 ft.
Monday Night
S wind 10 to 15 kt. A chance of showers. Seas 4 to 5 ft.
Tuesday
S wind 10 to 15 kt, with gusts as high as 25 kt. A chance of showers. Seas around 4 ft.
Tuesday Night
S wind 10 to 15 kt, with gusts as high as 20 kt. A chance of showers. Seas 4 to 5 ft.

Winds and seas higher in and near tstms.

*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: 43.17°N 70.36°W
Last Update: 5:02 pm EDT Jul 20, 2018
Forecast Valid: 7pm EDT Jul 20, 2018-6pm EDT Jul 27, 2018
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