Leicestershire Fire and Rescue captured this firenado footage in Derbyshire at a plastics factory fire. Via The Guardian
Firefighters captured spectacular footage of an unusual occurrence while tackling a plastic pallet blaze at the Ravensbourn plastics factory in Woodville, near Swadlincote. Fire tornadoes – also known as fire whirls – happen when cool air combines with hot air above to create a swirling effect.
The California wildfires have been creating firenadoes on a massive scale, with strengths similar to EF-3 tornadoes:
Here's a good explainer of the phenomenon: