1953 Flint–Beecher tornado
The overall people who died from June 6 through 9 was 247 (some reports mention higher numbers). The full damage went beyond $340 million (1953 USD; almost $3.3 billion 2021 USD). Michigan's deaths alone were 125. Others were killed across Nebraska, northern Ohio and east-central Massachusetts (mostly around Worcester). The last-said state's tornado was its very most expensive (costing $53 million) before 1979.