Heavy Rain In The Plains; Poor Air Quality Out West

A slow moving weather system in the central U.S. will bring locally heavy rain to much of the Plains this weekend. Isolated flash flooding is possible in this area. Meanwhile, smoke from ongoing wildfires will continue to cause poor air quality across much of the interior West, although fire weather conditions are generally improving in this region.
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Gray/Portland, ME Local Forecast Office

20NM ENE Portsmouth NH

Marine Point Forecast

[NOTICE]
  • Overnight

    Severe Thunderstorms

    S 10kt
    2-3ft

    Low: 69 °F

  • Saturday

    Showers Likely

    SSW 10kt
    2-3ft

    High: 71 °F

  • Saturday
    Night

    Showers Likely

    NE 20kt
    2-3ft

    Low: 63 °F

  • Sunday

    Partly Sunny

    ENE 15kt
    3-4ft

    High: 71 °F

  • Sunday
    Night

    Chance Showers

    ENE 15kt
    3-4ft

    Low: 63 °F

  • Monday

    Chance Showers

    NE 15kt
    3ft

    High: 70 °F

  • Monday
    Night

    Partly Cloudy

    ENE 10kt
    3ft

    Low: 64 °F

  • Tuesday

    Mostly Sunny

    Light Wind
    3ft

    High: 73 °F

  • Tuesday
    Night

    Chance Thunderstorms

    S 10kt
    3ft

    Low: 67 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:26 pm EDT Aug 17, 2018
Forecast Valid: 11pm EDT Aug 17, 2018-6pm EDT Aug 24, 2018

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Detailed Forecast


Synopsis: ANZ100-181245- 634 PM EDT Fri Aug 17 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A warm front will cross the region tonight as low pressure moves through northern Maine. The low will shift east into the maritimes Saturday with a trailing cold front pushing offshore by evening. High pressure will build in from the northeast Saturday night through Sunday and then hold over the region Monday and Tuesday. Low pressure will move in from the west Tuesday night and Wednesday. High pressure will build in from the west Wednesday night and Thursday. $$

Overnight
S wind around 10 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Some storms could be severe, with gusty winds and heavy rain. Patchy fog after 4am. Seas 2 to 3 ft.
Saturday
SSW wind around 10 kt becoming WSW in the afternoon. Showers likely, mainly after 2pm. Patchy fog before 10am. Seas 2 to 3 ft.
Saturday Night
NE wind 15 to 20 kt, with gusts as high as 30 kt. Showers likely, mainly before 8pm. Seas 2 to 3 ft.
Sunday
ENE wind around 15 kt, with gusts as high as 20 kt. Partly sunny. Seas 3 to 4 ft.
Sunday Night
ENE wind 10 to 15 kt. A chance of showers after midnight. Seas 3 to 4 ft.
Monday
NE wind around 15 kt. A chance of showers before noon. Seas around 3 ft.
Monday Night
ENE wind 5 to 10 kt becoming NNE after midnight. Partly cloudy. Seas around 3 ft.
Tuesday
Variable winds 5 kt or less. Mostly sunny. Seas around 3 ft.
Tuesday Night
S wind around 10 kt. A chance of showers and thunderstorms. Seas around 3 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: 6:26 pm EDT Aug 17, 2018
Forecast Valid: 11pm EDT Aug 17, 2018-6pm EDT Aug 24, 2018
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