Intense winds blasted through Chicago on Aug. 10, blowing the roof off of a building into oncoming traffic.
- Officials said full recovery from the storm will take several weeks.
- Early estimates say the derecho flattened at least one-third of Iowa’s crops about 10 million acres.
- The derecho covered a nearly 800-mile stretch of the U.S. over the course of 14 hours.
More than 600,000 customers remained without power Wednesday in the …