Watch Video: Rural Iowa Hit With Two Dozen Tornadoes
The tornadoes on this list have been officially rated F5 by an official government source. Unless otherwise noted, the tornadoes on this list have been rated F5 by Type: Tornado outbreak Extratropical cyclone Flood: Duration: April 25–28, 2011: Tornadoes confirmed: 362 confirmed (Record for a continuous outbreak) Max rating 1THE BASICS ABOUT TORNADOES. What is a tornado? According to the Glossary of Meteorology (AMS 2000), a tornado is “a violently rotating column of air Largest Killer Tornado Outbreak on Record in Northern Illinois, Impacting Belvidere, Lake Zurich and Oak LawnGet the latest Des Moines news and weather. The KCCI news team brings you the best in local coverage and all the top stories from across the state.Disaster Update Center. Safeguard strives to continually provide the most current information on disasters as they occur. Fires, tornadoes, hurricanes, floods Yahoo!-ABC News Network | © 2017 ABC News Internet Ventures. All rights reserved.The Texarkana Gazette is the premier source for local news and sports in Texarkana and the surrounding Arklatex areas.What Happened in 1936 Important News and Events, Key Technology and Popular CultureDaily paper. Local, state, and wire news and commentary. Photo galleries, business and obituaries.