Nearly 12,000 trees were lost during the powerful derecho storm in Chicago on Aug. 10, 2020. (Patty Wetli / WTTW News)

The Midwest, including most of Wisconsin, will be at risk from possible tornadoes, strong storms and hurricane-force winds Wednesday as the region is under a level 4 out of 5 threat of severe weather.

Nearly 12,000 trees were lost during the powerful Aug. 10 derecho storm. (Patty Wetli / WTTW News)

Damage to Chicago’s trees during the powerful Aug. 10 derecho was even more extensive than previously thought.