Tornado outbreak of December 10–11, 2021

Common card · No. 314802

A deadly late-season tornado outbreak, the deadliest on record in December, produced catastrophic damage and numerous fatalities across portions of the Southern United States and Ohio Valley from the evening of December 10 to the early morning of the 11th, 2021. The event developed as a trough progressed eastward across the United States, interacting with an unseasonably moist and unstable environment across the Mississippi Valley. Tornado activity began in northeastern Arkansas, before progressing into Missouri, Illinois, Tennessee, and Kentucky. The most extreme impacts resulted from two long-track supercell thunderstorms that produced families of strong tornadoes. The first of these supercells produced tornadoes spanning four Mid-South states. The first notable tornado of the event began in northeastern Arkansas, near Jonesboro, causing major damage in and near towns such as Monette and Leachville, Arkansas, at EF4 intensity. It crossed the Missouri Bootheel, causing additional damage...

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