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.
1998 Eastern tornado outbreak
Hardest hit areas from the June 2 tornado outbreak included Pennsylvania, which reported 22 tornadoes on June 2 (and a total of 45 tornadoes from May 31 to June 2), western Maryland, where 5 tornadoes occurred, and West Virginia, where some counties in the Potomac Highlands reported their first tornado in recent history. Tornadoes were also observed in New York, Virginia, Ohio, Tennessee, North Carolina and South Carolina. The most damaging tornado hit Carnegie, part of the Pittsburgh metropolitan area in Allegheny County, Pennsylvania, at 5:55 PM EDT. There, 50 injuries and $13 million in damage were reported. The deadliest tornado, an F3 on the Fujita Scale, hit near Meshoppen, Pennsylvania, in Wyoming County, around 10:30 PM EDT. This tornado caused 2 fatalities, 15 injuries and $2.2 million in damage. The most violent tornado hit Frostburg, Maryland, in Allegany County, at 9:43 PM EDT. 5 persons were injured, and $5 million in property damage was reported. It was the first F4 tornado to have hit the state of Maryland since the National Weather Service began keeping records in 1950. The Frostburg Tornado had moved southeast from Somerset County, Pennsylvania, where it was rated F3.