pete: i got to ask what is a fire tornado and how does it happen? >> a great description, wind from different levels of the amateur causing a twisting motion, the same premise as a regular tornado because of a cold front, clashing hermas, the same idea and a lot of these fires make their own weather system. trombones. pete: i love fall. cold front, speaking about tornadoes in minnesota, several of them because we never had this cold front, two hermas is coming together and thus far like system moving across the upper midwest. the threat for severe storms