Tri-State Tornado Strikes: Deadliest in U.S. History

A single tornado carved a 219-mile path of destruction across three states on March 18, 1925, killing 695 people in the deadliest tornado event in American history. The Tri-State Tornado struck southeastern Missouri, crossed southern Illinois, and entered southwestern Indiana at speeds that gave communities virtually no time to react, destroying everything in its mile-wide path. The storm formed in Reynolds County, Missouri, around 1:00 PM and immediately began producing catastrophic damage. Moving northeast at an average speed of 62 miles per hour, nearly double the pace of most tornadoes, it gave residents of towns in its path only minutes of warning. In 1925, there was no Doppler radar, no tornado watch system, and no emergency broadcast capability. Most people learned the tornado was coming only when they saw it. The worst destruction fell on Murphysboro, Illinois, where 234 people died, making it the single deadliest tornado strike on a U.S. city. The tornado destroyed 40 percent of the town in less than two minutes. Survivors described a roar that drowned out all other sound and darkness so complete that rescuers could not find victims until the dust settled. De Soto, Illinois, lost 69 people, including 33 children when the school collapsed. In Griffin, Indiana, the tornado killed 25 people and destroyed every structure. The tornado's exceptional characteristics made it difficult for contemporaries to understand. Its enormous width, estimated at over a mile at times, and its continuous track across three states without lifting were unprecedented in recorded experience. Some eyewitnesses did not recognize it as a tornado because it did not match the traditional funnel shape they expected. The Tri-State Tornado exposed the absence of any organized severe weather warning system in the United States. The Weather Bureau at the time did not even use the word "tornado" in forecasts, fearing it would cause panic. The disaster that killed 695 Americans in a single afternoon eventually forced the creation of the warning systems that protect millions today.