Tornado outbreak sequence of May 21–26, 2011
The tornado outbreak sequence of May 21–26, 2011 was one of the largest tornado outbreaks on record which affected the Midwestern and Southern regions of the United States. Most of the tornadoes developed in a corridor from Lake Superior southwest to central Texas; isolated tornadoes occurred in other areas. An especially destructive tornado destroyed one-third of Joplin, Missouri, resulting in 158 deaths and over 1,000 injuries. The Joplin tornado is the deadliest in the U.S. since April 9, 1947, when an intense tornado killed 181 in the Woodward, Oklahoma area. Tornado-related deaths also occurred in Arkansas, Kansas, Minnesota, and Oklahoma. Overall, the tornado outbreak resulted in 184 deaths, 6 of those non-tornadic, making it second only to the 2011 Super Outbreak as the deadliest since 1974, and the second costliest tornado outbreak in U.S. history behind that same April 2011 outbreak, with insured damage estimated at $4–7 billion.
Tornado outbreak of April 14–16, 2011
The outbreak was the deadliest tornadic event in the United States since the 2008 Super Tuesday tornado outbreak that occurred on February 5 and 6, 2008, when 57 people were killed across four states. In North Carolina, the outbreak was the state's largest since March 1984. Describing the outbreak, AccuWeather meteorologist Henry Margusity said, "There has not been a tornado outbreak in history over three days with this many tornadoes spawned by a single storm system". That record would later be smashed by the 2011 Super Outbreak that occurred just over a week after this outbreak.