The El Reno tornado, Joplin tornado and Tri-State tornado are among the biggest and most damaging twisters in U.S. history. Tornadoes can be more than a mile wide and have wind speeds greater than 300 ...
The state's largest November tornado outbreak on record took place Nov. 11, 2015. At least 19 tornadoes struck Iowa that Wednesday afternoon when a powerful low-pressure center dragged a fast-moving ...