Tuesday, August 9, 2016

Severe Weather Threatens the Northern Tier States This Week

Brian Donegan
Published: August 9,2016

Scattered severe thunderstorms, with damaging winds, large hail and locally heavy rain, will take aim at the northern Plains and Upper Midwest into Thursday. An isolated tornado or two are also possible.
Radar, Watches, Warnings

Current Radar with Watches and Warnings
(MORE: View National Interactive Radar Map | Difference Between a Watch and a Warning)
Below is our latest forecast thinking on the timing and magnitude of the severe threats this week.

Severe Weather Forecast

Tuesday
  • Forecast: A few severe thunderstorms are expected to develop Tuesday afternoon and evening across parts of Montana and the Dakotas.
  • Threats: Large hail and damaging wind gusts are the primary threats, but an isolated tornado is possible.
  • Cities: Bismarck, North Dakota | Aberdeen, South Dakota

Tuesday's Thunderstorm Forecast
Wednesday
  • Forecast: Scattered severe storms are expected from parts of the Dakotas into western Minnesota.
  • Threats: Damaging wind gusts and large hail are the main threats, although an isolated tornado can't be ruled out.
  • Cities: Fargo | Grand Forks | St. Cloud, Minnesota

Wednesday's Thunderstorm Forecast
Thursday
  • Forecast: Scattered severe storms will be possible in the Upper Midwest, including in parts of Iowa, South Dakota, Minnesota, and Wisconsin.
  • Threats: Damaging wind gusts and large hail are the main threats, although an isolated tornado can't be ruled out.
  • Cities: Duluth, Minnesota | Minneapolis/St. Paul | Sioux City, Iowa

Thursday's Thunderstorm Forecast

Severe Weather Setup

A new trough of low pressure will set up over the Pacific Northwest on Tuesday and slowly drift eastward into northwestern Montana by Tuesday night. In response to this, severe thunderstorms are expected to develop over the northern Plains.
The trough of low pressure will shift eastward from Montana into the Dakotas on Wednesday, setting the stage for more rounds of storms for the middle of the week.

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(PHOTO/VIDEO GALLERIES: Severe | Storms)

PHOTOS: Plains, Midwest Mid-June 2016 Severe Weather and Flooding

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