Reed Timmer shares storm chasing videos from the deadly 2011 Super Outbreak

The end of April marks the anniversary of the 2011 Super Outbreak, one of the most devastating and deadly tornado outbreaks in US history. Between April 25 and 28, severe thunderstorms spawned tornadoes in over a dozen states in the eastern U.S. This video was shot by Reed Timmer, who was stormchasing at the time.