The Des Moines Register posted this video on their site of the security cameras from inside of a bank that was destroyed during the tornado in Parkersburg, Iowa over the recent Memorial Day weekend. The video is astounding. You can see what the wind can do as the windows are blown out, and then the tornado hits the building dead on, eventually taking out the cameras.
Update: The Des Moines Register also posted this video footage from the same storm that destroyed much of Parkersburg, Iowa. It’s truly shocking.