This footage was shot by Curtis McDonald, Matt Chatelain, Charles Lubensky and Cory Mottice on May 19th, 2013. We tracked the first storm through NW Oklahoma City and watched it produce a tornado in Edmond, OK near I-35. We then dropped south and tracked a second storm from Norman, OK watching a tornado touch down near Lake Thunderbird and eventually become a large, violent tornado hitting the west sides of Shawnee, OK. Preliminary reports are that EF-4 damage was found within the city of Shawnee.
Source: Violent Shawnee, OK Tornado on May 19th, 2013 (Youtube).