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.
Missouri Southern State University
The school is about 30 blocks northeast of the worst of the devastation of the 2011 Joplin tornado which destroyed much of southern Joplin on May 22, 2011—one day after the school's graduation. Joplin High School had just completed its school graduation on the campus shortly before the tornado. The Leggett and Platt Athletic Center was used as an emergency shelter for victims. Billingsly Student Center was the headquarters for volunteer efforts run by Americorps St. Louis and was the coordination area for identifying victims and survivors. On May 29, 2011, Barack Obama, who was inspecting the damage, spoke at the Taylor Performing Arts Center.