This video shows a fire that started as a controlled 150-acre burn and everything was going well until a dust devil formed nearby. The dust devil swept fire and tumbleweeds into the air while firefighters ran for safety. This serves as an excellent reminder fire can change at any time so expect the unexpected even on a prescribed burn.

http://kfor.com/2014/03/21/watch-massive-dust-devil-sweeps-through-fire-creating-an-unbelievable-sight/