Emergency communication system
161 people were killed and at least 990 injured when an EF5 multiple-vortex tornado hit Joplin, Missouri. Because Joplin is located in a tornado-heavy area of the country, many people considered the tornado sirens routine and ignored them. Instead, many residents waited until they received confirmation from another, non-routine, source, such as seeing the tornado, a radio or TV report, or hearing a second siren. In the aftermath, an assessment team recommended that emergency warnings take risk perception into account to convey a sense of urgency. NOAA Officials are considering ways to change the warning system to distinguish smaller tornadoes from more deadly ones.
Tornado outbreak sequence of May 1896
Other killer tornadoes on that day touched down in Ogle County, Illinois (two different tornadoes) and Macomb & Tuscola Counties in Michigan. Several homes and farms in the Mount Clemens area were wiped out and others were moved from their foundations. The recently completed Colonial Hotel was leveled. Thirty homes were leveled in total, and two people were killed.
The third deadliest tornado in United States history struck St. Louis city and its metropolitan area on both sides of the Mississippi River in Missouri and Illinois on May 27. Preceded by a hurricane that nearly destroyed the city with electrical and water damage, that tornado alone at least killed 255, injuring thousands and destroying 50 million property value. This tornado in addition killed 27 other people elsewhere in Illinois and seven elsewhere in Missouri including three at a school in Audrain County. Twenty-four of the 27 other fatalities were recorded by a single tornado with 13 of them near New Baden. In that town about half of the homes were completely destroyed with damage figures at around $50,000. The towns of Belleville and Mascoutah were also hit. Three people were killed by the other killer tornado that tracked between Nashville and Mount Vernon. Fatalities were also reported the following day in Pennsylvania and New Jersey near Trenton between Philadelphia and New York City.