Severe storms to pummel portions of the north-central US
By
Mary Gilbert, AccuWeather meteorologist
Published Jun 16, 2020 10:51 AM EDT
Following scorching temperatures to begin the week, the north-central United States are facing a different weather threat at midweek.
The region had a taste of severe weather to begin the week as dangerous thunderstorms buffeted portions of the region with hail and rain on Sunday. Western North Dakota took the brunt of the hail pummeling on Sunday as baseball-sized hail was reported in Adams and Hettinger counties.
After a brief reprieve from the severe threat on Monday, residents in the north-central U.S. once again faced the threat for severe thunderstorms Tuesday evening.
In general, the strongest storms targeted the Dakotas, with hail and locally damaging wind gusts presenting the greatest hazards.
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Into Wednesday evening, the threat for severe thunderstorms will shift eastward into southern Manitoba, the eastern Dakotas and northwestern Minnesota.
"A pocket of cold air in the upper atmosphere moving eastward from the Rockies, in tandem with a cold front, will cause storms to be much more widespread on Wednesday than on Tuesday," AccuWeather Meteorologist Ryan Adamson said.
When the cold front digs into the area, it will encounter very warm air and increasing moisture at the surface, which will provide plenty of atmospheric fuel for some explosive storms.
"Threats into Wednesday night will be similar to Tuesday, but will extend over a larger area," Adamson said. "However, local flash flooding and isolated tornadoes will be additional threats as compared to Tuesday."
Storms that develop may be able to congeal into damaging lines of thunderstorms, rather than individual cells. If storms are able to congeal, the threat for widespread wind damage will increase, as will the threat for isolated tornadoes.
A few cities under the threat for large hail, torrential downpours and damaging winds with an AccuWeather Local StormMax™ of 70 mph (110 km/h), and even an isolated tornado or two include Aberdeen, South Dakota; Fargo and Grand Forks, North Dakota; and Winnipeg, Manitoba, Canada.
Drier and cooler weather is forecast for much of the region after the cold front departs and storms wind down later Wednesday night. Many locations will have a return to seasonable conditions, with high temperatures on Thursday expected to be 15-20 degrees lower than Wednesday.
While not likely to bring widespread severe weather, thunderstorms over part of the Upper Midwest will bring locally heavy rain and gusty winds during the day on Thursday.
Keep checking back on AccuWeather.com and stay tuned to the AccuWeather Network on DirecTV, Frontier and Verizon Fios.
Report a Typo
News / Severe Weather
Severe storms to pummel portions of the north-central US
By Mary Gilbert, AccuWeather meteorologist
Published Jun 16, 2020 10:51 AM EDT
Following scorching temperatures to begin the week, the north-central United States are facing a different weather threat at midweek.
The region had a taste of severe weather to begin the week as dangerous thunderstorms buffeted portions of the region with hail and rain on Sunday. Western North Dakota took the brunt of the hail pummeling on Sunday as baseball-sized hail was reported in Adams and Hettinger counties.
After a brief reprieve from the severe threat on Monday, residents in the north-central U.S. once again faced the threat for severe thunderstorms Tuesday evening.
In general, the strongest storms targeted the Dakotas, with hail and locally damaging wind gusts presenting the greatest hazards.
CLICK HERE FOR THE FREE ACCUWEATHER APP
Into Wednesday evening, the threat for severe thunderstorms will shift eastward into southern Manitoba, the eastern Dakotas and northwestern Minnesota.
"A pocket of cold air in the upper atmosphere moving eastward from the Rockies, in tandem with a cold front, will cause storms to be much more widespread on Wednesday than on Tuesday," AccuWeather Meteorologist Ryan Adamson said.
When the cold front digs into the area, it will encounter very warm air and increasing moisture at the surface, which will provide plenty of atmospheric fuel for some explosive storms.
"Threats into Wednesday night will be similar to Tuesday, but will extend over a larger area," Adamson said. "However, local flash flooding and isolated tornadoes will be additional threats as compared to Tuesday."
Related:
Storms that develop may be able to congeal into damaging lines of thunderstorms, rather than individual cells. If storms are able to congeal, the threat for widespread wind damage will increase, as will the threat for isolated tornadoes.
A few cities under the threat for large hail, torrential downpours and damaging winds with an AccuWeather Local StormMax™ of 70 mph (110 km/h), and even an isolated tornado or two include Aberdeen, South Dakota; Fargo and Grand Forks, North Dakota; and Winnipeg, Manitoba, Canada.
Drier and cooler weather is forecast for much of the region after the cold front departs and storms wind down later Wednesday night. Many locations will have a return to seasonable conditions, with high temperatures on Thursday expected to be 15-20 degrees lower than Wednesday.
While not likely to bring widespread severe weather, thunderstorms over part of the Upper Midwest will bring locally heavy rain and gusty winds during the day on Thursday.
Keep checking back on AccuWeather.com and stay tuned to the AccuWeather Network on DirecTV, Frontier and Verizon Fios.
Report a Typo