1912: A tornado moved north-northeast from 5 miles southeast of Rush Center, KS across the east half of Bison, KS. Farms were wiped out near Rush Center. The loss at Bison was $70,000 as half of the town, about 50 homes, were damaged or destroyed. There were 15 injuries in town. A dozen farms were nearly wiped out. Debris from the farm houses was carried for 8 miles. An elderly man who made light of the storm was killed with his granddaughter on a farm 2 miles southwest of Bison.
1920: Tornadoes in Mississippi and Alabama killed 219 persons. Six tornadoes of F4 intensity were reported. Aberdeen, Mississippi was hard hit by an F4 tornado that killed 22 people. This same tornado killed 20 in Marion County, Alabama. Nine people in one family died in Winston County, Alabama.
1984: A temperature of 106 degrees at Del Rio, Texas set a new record high for the month of April.
— highways&hailstones (@HHstormchase) April 20, 2017
2004: A strong F3 tornado moved across the town of Utica, near LaSalle-Peru in north central Illinois. This tornado destroyed several homes, a machinery building, and a tavern. The roof of the tavern collapsed, killing eight people inside; many of these people had come into town from nearby mobile homes, seeking sturdier shelter. The tornado dissipated on a steep bluff on the northeast side of the city. Another tornado developed shortly afterward, crossing I-80 near Ottawa. Several other tornadoes developed across north central and northeast Illinois, affecting areas around Joliet and Kankakee.
— #StormHour (@StormHour) April 20, 2017