Authorities say tornadoes have touched down in Wichita, Kan., and a suburb of Oklahoma City but there are no immediate reports of injuries or significant damage.
Sedgwick County, Kan., emergency management director Randy Duncan says officials are "very grateful" about the few reports of damage from the tornado that touched down near Wichita Mid-Continent Airport shortly before 4 p.m. CDT Sunday.
A tornado also reportedly grazed the Oklahoma City suburb of Edmond before heading toward a sparsely populated area. There were reports of debris but no injuries or traffic crashes.
The National Weather Service described the tornado as "large, violent and extremely dangerous" and said it was moving northeast at 30 mph.
The tornadoes are part of a large storm system moving through the Plains and upper Midwest.