A destructive fire-generated vortex -- a massive stream of rising, spinning, smoke, ash and fire -- that topped out at 17,000 feet above the earth, accelerated the Carr fire that killed eight people and devastated a widespread area in the Redding, California region in July 2018. The vortex, a little-observed atmospheric phenomena, was spinning with the power of a class three tornado, which earned it the name of Firenado.
The Carr Fire, which burned in Shasta and Trinity Counties, started July 23 after a tire blew out on a trailer and the rim made sparks on the pavement. It went on to burn 230,000 acres -- 359 square miles -- making it the seventh largest fire in California history. It was 100 percent contained by August 30.
In the future, Lareau said, the operational meteorological and fire-fighting communities might develop routines to carefully inspect radar data for evidence of shear or rotation in wildfire plumes, and satellite data for indications of fire-cloud formations and storms
https://www.sciencedaily.com/releases/2018/12/181206114740.htm
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