NORMAN, Okla. (NewsCore) - As Oklahoma and Kansas recovered Sunday from a devastating flurry of overnight tornadoes, forecasters predicted more severe weather for northeast Iowa, southeast Minnesota and much of western and central Wisconsin.
The National Weather Service said tornadoes, damaging winds and large hail may develop over parts of the Upper Mississippi Valley into Sunday evening.
It said severe storms are also possible in a corridor from northern Wisconsin down into Arkansas, northwest Louisiana and eastern Texas.
Meanwhile, Oklahoma Gov. Mary Fallin declared a state of emergency Sunday for a dozen counties in her state that were damaged by a spate of tornadoes, severe storms and flooding that began Friday.
In Woodward, Okla., five people died -- including two children -- and 29 more were injured early Sunday when a tornado nearly a quarter-mile wide tore across the city of 12,000.
Woodward Police Chief Harvey Rutherford told KWTV that a tower designed to send a repeating signal to the town's tornado siren system was disabled by the storm, which meant many residents received no warning of the approaching pre-dawn twister.
Roughly 120 additional tornadoes were spotted across Kansas, Nebraska, Oklahoma and Iowa.
Most of those sightings were in Kansas, where one half-mile-wide wedge tornado came close to hitting downtown Wichita.
Kansas Gov. Sam Brownback also declared a state of emergency. In an interview on CNN's "State of the Union" Sunday morning, he said there was "quite a bit of damage" in his state, but no known fatalities.
"I really think people took the warnings and they took it very seriously," he said. "We had more notice on this system than you normally do. You normally are looking at a couple of hours notice."
Oklahoma officials were also assessing the damage on Sunday.
"My thoughts and prayers go out to those families who have lost loved ones or seen their homes destroyed," Fallin said in a statement. "The state of Oklahoma is currently doing everything it can to provide relief to the communities in the path of last night's storms and tornadoes. We will continue to work to provide every bit of assistance that we can in the coming days."
According to The Weather Channel, Woodward's five fatalities bring the overall US death toll from tornadoes up to 62 in 2012.