Tornado outbreak sequence of May 21–26, 2011
On May 22, a large, devastating EF5 tornado tracked through Joplin, Missouri, leaving behind catastrophic damage. It was a multiple-vortex tornado in excess of wide. Mainly the southern part of the city was affected with most structures in the area either damaged or destroyed. 162 people were killed along the path through Jasper and Newton counties in Missouri, making it the deadliest U.S. tornado since 1947, and one of the deadliest single tornadoes ever recorded. Among the most heavily damaged structures was St. John's Hospital (pictured right), which later was torn down due to the severity of the structural damage. Damages were estimated at around $2.8 billion (2011 USD).
1948 Tinker Air Force Base tornadoes
Although storms were relatively benign up to the point where they reached Tinker, a supercell formed just west of the base, and at around 6 pm a tornado touched down on the base for the second time in six days. This second tornado caused $6 million in damage, or $ million in dollars. However, due to precautions enacted because of the tornado forecast, no injuries were reported, and damage totals could have been much higher.