Firefighters capture video of "firenado"

Firefighters in Derbyshire, England, captured a strange and frightening natural phenomenon on video Tuesday. It looks like a tornado that's on fire, and the Leicestershire Fire and Rescue Service Ashby Station appropriately referred to it as a "firenado."The video of the menacing, swirling flames has gone viral online, and the fire and rescue service offered a simple explanation as to what caused the blazing cyclone. "It's created as cool air enters the top of the hot air causing a swirl similar