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.
2003 South Dakota tornado outbreak
The 2003 South Dakota tornado outbreak, known locally as "Tornado Tuesday", was a tornado outbreak that occurred in the southeastern and east central part of South Dakota in the United States on June 24, 2003. At the time, this outbreak tied a United States record for the most tornado touchdowns in a single day for one state, with 67. The event was part of a larger outbreak that produced 125 tornadoes. However this record was surpassed by a tornado outbreak in Kansas on May 23, 2008 when 73 tornadoes hit the state, including two that started in Oklahoma. It was also the largest tornado outbreak ever recorded in the astronomical summer period that was not related to a tropical cyclone.