Awful.
I lived in Kentucky for a few years and went through one storm where tornadoes touched down (fortunately, not too close to where I was) ... and I can safely say, there is no natural disaster that puts the fear of God in my more than a tornado. There was one a bit north of where I live now, in Jarrell, Texas, not long after I move here that was an F5 and wiped out a good part of that town as well. Man those things are fucking scary and vicious. Mother Nature can be a real, mercurial bitch sometimes.