Usnews.nbcnews.com reports that...
A vast area of the central U.S. was warned to prepare for storms on Monday, after tornadoes killed one and injured 21 in Oklahoma and also hit Iowa and Kansas.
“After over 300 reports of severe weather on Sunday, another round of dangerous severe weather is expected Monday with the greatest threat once again in the southern Plains targeting Oklahoma and parts of Kansas, Missouri and Arkansas,” the National Weather Service said. “However, severe weather is possible much further north towards Chicago and Madison as well.”