There were 4 different tornadoes chased during this episode, all of which touched down on May 24, 2011. The first spotted was an EF2 by Team Dominator near Watonga, Oklahoma. The second was an EF3 near Canton, Oklahoma followed by Teams Dominator and TWISTEX, which was responsible for one death. The third was an EF5 northwest of Oklahoma City chased by the Dominator and TIV, which killed nine people. The last was an EF4 which touched down southwest of Oklahoma City and killed one person.