But at least 12 tornadoes were reported in IL on Saturday, including one in Taylorville which has been confirmed. According to data from the Tornado History Project, the last time tornadoes were reported in IL in December was in 2015 when six tornados broke out. If most are confirmed as tornadoes, Miller said that would be the most tornadoes in IL in a December storm since Dec. 18-19, 1957, when there were 21.
Hardest hit was the town of Taylorviille, southeast of Springfield, where storm winds wrecked houses, downed power lines, pulled trees up by the roots, and left an unknown number of people injured. Barns were damaged from this storm and several tree were uprooted. That tornado traveled about 7 miles (11 kilometers) just past the town of Gore.
Severe thunderstorms also raked IL and Missouri on Saturday.
The National Weather Service sent crews Sunday to survey the hardest-hit areas in IL, which included Taylorville, 25 miles (40 kilometers) southeast of Springfield, Springfield's State Journal-Register reported.
Multiple tornadoes touched down in central Illinois Saturday night, damaging dozens of structures and injuring at least 20 people, according to the National Weather Service.
A full assessment will be completed sometime Monday or Tuesday after the teams have finished tracking the start and end points of the storms, Chris Miller, the warning coordination meteorologist with the National Weather Service in Lincoln, told Fortune.
At least three people are being treated for major injuries at Memorial Hospital in Springfield and 18 more suffered minor injuries, Rauner said.
Rescuers pulled people from homes damaged by the twisters, Taylorville Fire Department Chief Mike Crews said. Most were released within hours. There have been no reported deaths; however, at least one injury was reported as critical.
Early Saturday morning a third tornado with estimated peak winds of 107 mph traveled about 8.5 miles (13.5 kilometers) through Spring Hill in southwest Arkansas.