A wall of fire crests a hill along Bloody Creek Road in Chase County, Kansas.Photo:Larry Schwarm
Smoke billows from a 2006 blaze in Lyon County, Kansas.
Photo:Larry Schwarm
Photo:Larry Schwarm
Photo:Larry Schwarm
Fire whirls, like this one that hit Kansas in 1994, are formed by a spinning vortex column of hot air and gases rising from a fire that carries aloft smoke, debris, and flame. They range from one foot to more than 500 feet in diameter and can equal the intensity of a small tornado.