During the afternoon and evening of April 22, 2020, an outbreak of discrete supercell thunderstorms across portions of Oklahoma, Texas, Arkansas, Mississippi and Louisiana led to widespread severe weather, including multiple tornadoes. Three people each were killed by tornadoes near the communities of Madill, Oklahoma and Onalaska, Texas; dozens of others were injured. The event came to fruition as a trough progressed eastward across the United States, interacting with a moist and unstable environment.