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Severe Weather Threat August 28, 2021

TH2002

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Currently tracking a storm that has produced at least one tornado in the Sioux Falls area. The latest radar scan indicates the tornado has lifted for now but the storm is still TOR warned.
082821-4.JPG
Storm is still moving east at 40 MPH with the towns of Rowena and Larchwood in the path.

The SPC has a 30/10 Tornado Watch out for east central SD and SW MN.
 

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Storm is taking on a more linear mode as it moves into SW Minnesota And NW Iowa.
 

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New TOR warning for four counties in SW Minnesota. Weather spotters reporting funnel cloud near Trosky.
 

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New TOR warning for central Murray County and parts of Cottonwood County in MN. Towns in the warning include Chandler (which was struck by an F5 tornado in 1992) Slayton, Currie, Dovray and Westbrook.

Edit: Also just noticed another TOR warning went up for Nobles County MN including Adrian, Rushmore, Worthington and Brewster.
 

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Latest scan. There are definitely two distinct areas of rotation within the line.
082821mn.JPG
 

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Latest MD mentions a downstream watch is likely in the next hour or so.
 

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FSD has more or less blanketed the line with tornado warnings (a common thing with squall lines as QLCS tornadoes form out of virtually nowhere)
 

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The Lincoln County Sheriff's Office is reporting considerable damage in the Lennox area including vehicles pushed or thrown into a ditch along an interstate. Downed trees and power lines, roof damage and flattened crops are being reported as well and the entire city of Lennox remains without power.
 

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This area of rotation in SD east of Spencer is pretty broad right now but if it tightens up it could produce a signficant tornado.
082821sd.JPG
 

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Lennox tornado rated EF1, winds of 95 mph. Path length and intensity were nothing to ride home about but at 400 yards wide, it was unusually wide for a QLCS tornado.
 
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