We don't get as many tornades as say Texas, Oklahoma, or Kansas. But things can get interesting. In 2002, we had a pretty bad tornado that caused a lot of damage through central Indiana. I remember it well. My "ex" and I lived in Hendricks county (near I-70 see map) and I was at home that day working on my computer--our house was on a hill and my office windows faced South. While we were not directly hit, I had a great "view" as the storm moved in. Solid black--it looked like "smoke" over the trees. She worked as a nurse at an Indianapolis hospital and they had to take patients into the halls as the tornado struck downtown. A few of our large buildings had windows blown out and some of our campus buildings were hit as well and students in the dorms were evacuated.
Here is a link to pictures of the damage and a map of its path:
http://tkerby.com/tornado2002/gallery.html