The National Weather Service in Duluth is anticipating two rounds of severe storms that could produce damaging winds, large hail and heavy rainfall beginning Thursday in northeast and north-central Minnesota.
Thursday's storm is expected to arrive in the Northland around 8 p.m. with the primary threat being wind gusts up to 70 mph. Heavy rainfall may cause localized flash flooding, and hail up to 1.25 inches in diameter is possible, according to the Weather Service. Confidence for Thursday's storm is "higher than average."
On Friday, the second round will most likely take place from 5 p.m. through 1 a.m Saturday, this time in Northeastern Minnesota and into parts of Northwestern Wisconsin.
One or two tornadoes are possible during Friday's storms, which could produce winds gust up to 70 mph. Localized flash flooding will be possible again, as will hail up to 1.5 inches in diameter. The confidence for the second round of storms is also "higher than average," according to the Weather Service.
Potential impacts from the storms include damaged property from hail, flooding and knocked-down trees leading to power outages and hazardous conditions for campers or others outdoors, the Weather Service said.
This story has been updated with more information from the National Weather Service at 4:29 p.m. Aug. 13. It was previously published at 9:11 a.m., Aug. 13.