There may have also been a multi-vortex tornado containing smaller, rapidly spinning whirls. We'll have more confirmation and details on wind speeds and EF ratings as the NWS finishes surveys.
The multi-vortex tornado grew to a maximum width of nearly a mile and spent 45-plus minutes on the ground. More than 150 deaths were recorded, making it one of the deadliest tornadoes in history.
Researchers have experimentally demonstrated a quantum tornado. Electrons form vortices in the momentum space of the quantum semi-metal tantalum arsenide.