Images: Illinois tornado damage

Doug Sage of Cameron uses the Skype app on his cell phone to display damage to his home to his daughter Courtney Sage, who is studying abroad in Korea Friday July 17, 2015 in Cameron, Ill., the morning after a tornado swept through the city. Sage's home and garage suffered extensive damage during the storm. At least three tornadoes hit communities in the northwest corner of Illinois and the central part of the state late Thursday, causing extensive damage but no significant injuries, officials said. ASSOCIATED PRESS

Josh Atwell stands in front of remnants of a trailer he was restoring to move into Friday July 17, 2015 before it was destroyed by a tornado that struck Thursday night in Cameron, Ill., At least three tornadoes hit communities in the northwest corner of Illinois and the central part of the state late Thursday, causing extensive damage but no significant injuries, officials said. ASSOCIATED PRESS

The twisted wreckage of several grain bins lie in a heap Friday July 17, 2015 in Cameron, Ill., the morning after a tornado swept through the city. At least three tornadoes hit communities in the northwest corner of Illinois and the central part of the state late Thursday, causing extensive damage but no significant injuries, officials said. ASSOCIATED PRESS

Trevor Davies uses Skype technology to show his niece, Courtney Sage, who is studying abroad in Korea, damage to her car Friday July 17, 2015, after a tornado struck Sage's family home in Cameron, Ill., on Thursday night. At least three tornadoes hit communities in the northwest corner of Illinois and the central part of the state late Thursday, causing extensive damage but no significant injuries, officials said. ASSOCIATED PRESS

Illinois Governor Bruce Rauner hugs Delavan, Ill., Mayor Liz Skinner as Delavan Fire Protection District Chief Rod Ashby, left, looks on Friday, July 17, 2015, before Rauner surveys the damage in Delavan from Thursday nights tornado. At least three tornadoes hit communities in the northwest corner of Illinois and the central part of the state late Thursday, causing extensive damage but no significant injuries, officials said. ASSOCIATED PRESS

Emergency vehicles surround the twisted wreckage of a grain elevator Friday July 17, 2015 in Cameron, Ill., the morning after a tornado swept through the city. At least three tornadoes hit communities in the northwest corner of Illinois and the central part of the state late Thursday, causing extensive damage but no significant injuries, officials said. ASSOCIATED PRESS

Illinois Governor Bruce Rauner, right, walks with assistant director of Illinois Emergency Management Agency Joseph Klinger as he surveys tornado damage Friday, July 17, 2015 in Delavan, Ill. At least three tornadoes hit communities in the northwest corner of Illinois and the central part of the state late Thursday, causing extensive damage but no significant injuries, officials said. ASSOCIATED PRESS

Multiple grain bins lie toppled over each other Friday July 17, 2015 in Cameron, Ill., the morning after a tornado swept through the city. At least three tornadoes hit communities in the northwest corner of Illinois and the central part of the state late Thursday, causing extensive damage but no significant injuries, officials said. ASSOCIATED PRESS