Incredible birth of the violent El Reno wedge tornado. As the tornado touched down, it produced a rare display of suction vortices. The whole story will be featured on the upcoming 2013 season of Tornado Chasers on http://tvnweather.com/ondemand. NEVER STOP CHASING!
Source: INSANE Tornado Suction Vortices! May 31, 2013 – El Reno, OK (Youtube).