Severe thunderstorms possible from the central Plains to the upper Midwest

Severe thunderstorms containing damaging winds, large hail, heavy rainfall, and a few isolated tornadoes will be possible this afternoon into tonight from the central Plains to the upper Midwest. The threat is expected to shift east into the Great Lakes region by Friday. In addition, heavy rainfall could cause localized flooding concerns.
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Gray/Portland, ME Local Forecast Office

5NM E Portland ME

Marine Point Forecast

[NOTICE]
  • Today

    Slight Chc Thunderstorms

    WNW 15km/h
    1m

    High: 20 °C

  • Tonight

    Partly Cloudy

    WSW 10km/h
    < 1m

    Low: 12 °C

  • Thursday

    Chance Rain

    Winds IncreasingSSW 20km/h
    < 1m

    High: 19 °C

  • Thursday
    Night

    Showers Likely

    Winds IncreasingSSW 20km/h
    1m

    Low: 16 °C

  • Friday

    Chance Showers

    SW 20km/h
    1m

    High: 23 °C

  • Friday
    Night

    Chance Showers

    SW 15km/hWinds Decreasing
    1m

    Low: 17 °C

  • Saturday

    Chance Thunderstorms

    Winds IncreasingSSE 15km/h
    1m

    High: 23 °C

  • Saturday
    Night

    Showers Likely

    S 15km/h
    1m

    Low: 17 °C

  • Sunday

    Showers Likely

    S 20km/h
    1m

    High: 22 °C


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:53 am EDT Jun 28, 2017
Forecast Valid: 9am EDT Jun 28, 2017-6pm EDT Jul 4, 2017

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Detailed Forecast


Synopsis: ANZ100-290100- 648 AM EDT Wed Jun 28 2017 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A trough of low pressure will pass across the waters this afternoon. A warm front will approach from the southwest on Thursday and move over the waters Thursday night and Friday. Another low pressure system will approach from the west over the weekend. $$

Today
WNW wind 10 to 15 km/h becoming WSW in the afternoon. A slight chance of showers and thunderstorms after 3pm. Seas around 1 m.
Tonight
WSW wind around 10 km/h. Partly cloudy. Seas 1 m or less.
Thursday
SSW wind 10 to 15 km/h increasing to 15 to 20 km/h in the afternoon. A chance of rain after 4pm. Seas 1 m or less.
Thursday Night
SSW wind 10 to 15 km/h increasing to 15 to 20 km/h after midnight. Showers likely, with thunderstorms also possible after midnight. Seas around 1 m.
Friday
SW wind 15 to 20 km/h. A chance of showers. Seas around 1 m.
Friday Night
SW wind 10 to 15 km/h decreasing to 5 to 10 km/h after midnight. A chance of showers. Seas around 1 m.
Saturday
SSE wind 5 to 10 km/h increasing to 10 to 15 km/h in the afternoon. A chance of showers and thunderstorms. Seas around 1 m.
Saturday Night
S wind around 15 km/h. Showers likely. Seas around 1 m.
Sunday
S wind 15 to 20 km/h. Showers likely. Seas around 1 m.

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: 6:53 am EDT Jun 28, 2017
Forecast Valid: 9am EDT Jun 28, 2017-6pm EDT Jul 4, 2017
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