Severe Thunderstorms over the Plains, Heavy Rain Threat Continues over Portions of the Mississippi Valley

Heavy rainfall with localized flooding will remain possible over portions of the Mississippi Valley and the Plains through midweek. In addition, severe thunderstorms will be possible over the southern and central Plains. Some of the storms could contain damaging winds and large hail.
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Gray/Portland, ME Local Forecast Office

5NM E Portland ME

Marine Point Forecast

[NOTICE]
  • Tonight

    Mostly Cloudy

    ENE 10km/h
    1m

    Low: 16 °C

  • Friday

    Showers

    E 15km/hWinds Decreasing
    < 1m

    High: 17 °C

  • Friday
    Night

    Showers

    S 25km/hWinds Decreasing
    1m

    Low: 17 °C

  • Saturday

    Chance Showers

    S 15km/h
    1m

    High: 23 °C

  • Saturday
    Night

    Chance Thunderstorms

    S 15km/h
    1m

    Low: 18 °C

  • Sunday

    Sunny

    W 15km/h
    1m

    High: 24 °C

  • Sunday
    Night

    Mostly Clear

    WNW 10km/h
    < 1m

    Low: 17 °C

  • Monday

    Sunny

    SW 15km/h
    < 1m

    High: 25 °C

  • Monday
    Night

    Mostly Clear

    SSW 10km/h
    < 1m

    Low: 18 °C


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:03 pm EDT Aug 17, 2017
Forecast Valid: 10pm EDT Aug 17, 2017-6pm EDT Aug 24, 2017

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Detailed Forecast


Synopsis: ANZ100-181200- 549 PM EDT Thu Aug 17 2017 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A warm front will approach from the southwest tonight and Friday and will gradually push east of the region Friday night. A slow moving cold front will cross the region Saturday through Saturday night. High pressure will build in from the west Sunday through Monday and will slide offshore on Tuesday. A cold front will move in from the west Tuesday night and will cross the region on Wednesday. High pressure will build in behind the front Wednesday night through Thursday. $$

Tonight
ENE wind around 10 km/h. Mostly cloudy. Seas around 1 m.
Friday
E wind 10 to 15 km/h becoming SSE 5 to 8 km/h in the afternoon. Showers, mainly after noon. Seas 1 m or less.
Friday Night
S wind 22 to 25 km/h becoming SSW 20 to 23 km/h after midnight. Showers, mainly before 2am. Patchy fog. Seas around 1 m.
Saturday
S wind 10 to 15 km/h. A chance of showers. Seas around 1 m.
Saturday Night
S wind 10 to 15 km/h becoming W after midnight. A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 4am. Seas around 1 m.
Sunday
W wind 10 to 15 km/h. Sunny. Seas around 1 m.
Sunday Night
WNW wind around 10 km/h. Mostly clear. Seas 1 m or less.
Monday
WNW wind 10 to 15 km/h becoming SW in the afternoon. Sunny. Seas 1 m or less.
Monday Night
SSW wind around 10 km/h becoming W after midnight. Mostly clear. Seas 1 m or less.

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: 43.67°N 70.14°W
Last Update: 7:03 pm EDT Aug 17, 2017
Forecast Valid: 10pm EDT Aug 17, 2017-6pm EDT Aug 24, 2017
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