tornado ripped into this pfizer manufacturing plant, shearing off the roof. are never seen anything like this in person. reporter: in dortches, north carolina, stretches ruined. may be a minute. it was over. reporter: neighboring kentucky s weather worry flooding. here is justin michaels with our partners at the weather channel. reporter: here in western kentucky, the water came fast and furious. just outside the city of mayfield, what is expected to be a new 24-hour rainfall record for the state with over 11 inches. residents here are still coping from the devastating and deadly tornado that ripped through the region less than two years ago. so it is a known flood risk area, but like i said, it came so quickly. reporter: and what that nearly foot of rain did here in mayfield, kentucky, over the course of 24 hours was flood out cars and garages. even a home through those trees. over here, the mayfield elementary school now surrounded