Tornadoes can strike quickly nearly anywhere on Earth, unleashing deadly winds and damaging hail. The United States has more tornadoes each year than any other country. This book teaches young readers about how these swirling storms form. The engaging nonfiction narrative helps readers understand life-saving ways to prepare and stay safe if a tornado warning is issued in their area. With astonishing photographs and remarkable facts that follow Earth science curricula, this book will keep young readers engaged and impressed by Earth's power.