One of a Kind 
I never knew that fire tornadoes existed. One was just spotted in Queensland, Australia. This happens when a hot fire sucks in cold air around it. The hot air rises and the cool air is sucked into a spot and it begins to spin. Sometimes is forms pyrocumulous clouds. When the heat rises the particles travel up to find moisture pockets and this is how the cloud is created. The cloud can stay very hot for a while so there may be lightening that comes out of the cloud or even flames inside the cloud. 

"Fire Tornado at Magna" by Jackharrybill

Source posted by Julia