Missouri
Located in Tornado Alley, Missouri also receives extreme weather in the form of severe thunderstorms and tornadoes. The most recent tornado in the state to cause damage and casualties was the 2011 Joplin tornado, which destroyed roughly one-third of the city of Joplin. The tornado caused an estimated $1–3 billion in damages, killed 159 (+1 non-tornadic), and injured over 1,000 people. It was the first EF5 to hit the state since 1957 and the deadliest in the U.S. since 1947, making it the seventh deadliest tornado in American history and 27th deadliest in the world. St. Louis and its suburbs also have a history of experiencing particularly severe tornadoes, the most recent memorable one being an EF4 tornado that damaged Lambert-St. Louis International Airport on April 22, 2011. One of the worst tornadoes in American history struck St. Louis on May 27, 1896, killing at least 255 and causing $10 mil. damage ($3.9 bil. damage in 2009) or $ in today's dollars.
1985 United States–Canada tornado outbreak
90 people were killed in the United States and Canada in the outbreak; the most for an outbreak since the 1974 Super Outbreak, and a mark that stood until the April 25–28, 2011 tornado outbreak. It was the third costliest tornado outbreak in the history of the U.S., where it caused $600 million (2010 U.S. dollars) damage in Ohio, Pennsylvania, and New York. It was also one of the costliest in Canada: damage in Ontario totaled an estimated $400 million USD. The damage would total nearly $1 billion in 2010 U.S. dollars.