RICHMOND, Va. (WRIC) — For Part 2 of this Weather University special series on severe weather, 8News meteorologists Matt DiNardo and Jacqueline Waters discussed tornadoes. The pair discussed the recent Netflix documentary, "The Twister: Caught in the Storm," and its recounting of the effects of t he deadly tornado in Joplin, Missouri, in 2011. They also discussed how tornadoes are formed and how the Enhanced Fujita (EF) scale evaluates tornado severity. For more episodes of Weather University, visit the WRIC NOW page. ...read more read less