A weekend of deadly tornadoes has left at least 40 people dead across multiple U.S. states, with Missouri suffering the highest death toll. The storms caused catastrophic damage, flipping school buses, demolishing homes, and leaving thousands without power. President Trump has deployed the National Guard to aid recovery efforts in Arkansas, while residents in hard-hit areas are stepping up to help one another. With tornado season just beginning, more severe weather is likely in the coming months.