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1925 Tri-State tornado

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In the midday and afternoon hours of Wednesday, March 18, 1925, the deadliest tornado in United States history and second-deadliest worldwide moved through Eastern Missouri, Southern Illinois and Southern Indiana, killing 695 people and injuring 2,027 more in what is sometimes known as the Tri-State tornado. The tornado touched down as part of a larger severe weather outbreak that hit the United States on the same day, and produced catastrophic damage across numerous villages and towns in all three states. Despite not being officially rated, it is widely accepted to have been equivalent to an F5 on the Fujita scale.