Believe it or not, fire tornados are a naturally occurring phenomenon. Furthermore, experts say they're not actually as uncommon as you'd think, just under-reported.
Despite the name “fire tornado,” they actually have more in common with dust devils than tornados. Still, they’re pretty incredible to see – and even more so in super-slow-motion HD quality.
With a fire pit, 12 box fans and two ultra-high-speed cameras, the Slow Mo Guys put their expertise to good use and filmed a “homemade” fire whirl at both 1,000 and 2,500 frames per second.