At least eight tornadoes touched down across counties just south and west of the Twin Cities metro Wednesday night, but damage was mainly limited to downed trees, the National Weather Service said.
Storms rolling from south to north spawned twisters in Steele, Rice, Sibley and Scott counties, said Caleb Grunzke, a meteorologist with the weather service’s Chanhassen office.
There had been a slight potential for severe weather on Wednesday, and there was just enough instability in the atmosphere to produce low-top supercells that led to the season’s first big outbreak of twisters, Grunzke said.
The first warnings went out in Steele County near Owatonna, where two tornadoes were sighted about 7:25 p.m. Over the next 90 minutes, twisters also touched down near Morristown, Henderson, Dundas and Elko New Market. In total, the weather service counted eight tornadoes, Grunzke said.
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