Tornadoes ripped through Nebraska and Iowa, injuring several people and damaging or destroying hundreds of homes on Friday — with more severe weather forecast for the central U.S. on Saturday. Three people were hurt when a twister struck an industrial building in Lancaster County, Nebraska, causing it to collapse with 70 people inside on Friday, the Associated Press reported. Several people were trapped in the wreckage but everyone was rescued and no one was critically injured, authorities said. Some of the worst destruction was reported in suburban Omaha, where a tornado plowed through miles …