Ohio History A wide outbreak of 37 tornadoes killed 256 people, mostly in Ohio, Michigan, and Indiana on Palm Sunday 1965. This was deadliest tornado outbreak in 33 years in the United States and has been exceeded since only by the April 1974 outbreak. The 55 people killed in Ohio on April 11, 1965, made this the second deadliest tornado day in Ohio history, after the 1924 Lorain Tornado. The only tornado on April 11 to touch down in a large city hit Toledo at about 9:30 PM. It cut a six-mile long path across the northern edge of Toledo....