Tornado outbreak of December 16–17, 2019
A significant severe weather and tornado outbreak affected the Southern United States between December 16–17, 2019. Discrete supercells developed in the early morning on December 16 and moved northeast, spawning multiple strong, long-tracked tornadoes in cities such as Alexandria and in Laurel before congealing into an eastward-moving squall line.
Source: Wikipedia — Tornado outbreak of December 16–17, 2019 (CC BY-SA 4.0)