Derecho 911 chronicles the historic derecho of 2020 which devastated a large portion of Iowa. The book explores in-depth the meteorological conditions that caused the storm as well as why it has a special place as one of the most extreme wind storms in United States history. We look at other derechos in Iowa's past and how this compares to previous natural disasters. We also explore the human side of how this storm impacted the people of Iowa: its agriculture, its power grid, tree canopy, and many compelling sidebars related to the disaster.