On Thursday, September 29, 1927, an outbreak of at least 15 significant tornadoes, including three F3 tornadoes, killed at least 82 people in the Central United States, particularly in Missouri and Illinois. The outbreak affected a broad expanse of the Midwestern and Southern United States, including

Oklahoma Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ...

, Missouri, Arkansas, Iowa, Illinois, and Indiana. The deadliest tornado was an estimated F3 which affected portions of Greater St. Louis, killing at least 79 people and injuring at least 550 others. The tornado narrowly missed Downtown St. Louis, striking north of the central business district before crossing the Mississippi River.

Confirmed tornadoes

September 29 event

St. Louis, Missouri–East St. Louis, Illinois

The 1927 St. Louis–East St. Louis tornado was a powerful and devastating tornado that struck St. Louis, Missouri, on Thursday, September 29, 1927, at about 1:00 p.m. local

standard time Standard time is the synchronisation of clocks within a geographical region to a single time standard, rather than a local mean time standard. Generally, standard time agrees with the local mean time at some meridian that passes through the r ...

. The tornado is estimated to have reached at least F3 and possible F4 intensity on the Fujita scale. The 2nd deadliest tornado to occur in the St. Louis metropolitan area, it caused 79 deaths—though totals vary from 72 to 84—and injured more than 550 people within a , path. At one time it was the second-costliest tornado in U.S. history. More than 200 city blocks were destroyed. St. Louis University High School was hit hard. The student chapel's roof collapsed, the gym's (now main offices) roof was damaged, an entire classroom caved in on a class, and other classrooms were damaged. All the windows were smashed. Luckily, no one was killed or badly injured. The tornado caused $150,000 in damage to the school.

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