'Fire tornado' caught on camera by crews fighting B.C. blaze

An "incredibly rare" phenomenon called a fire whirl or fire tornado was caught on video by ground crews responding to a destructive blaze last week, according to the B.C. wildfire service. Conditions in the early morning hours of Aug. 17, which included a sudden drop in temperature following a heat wave combined with whipping winds, caused the Downton Lake wildfire to display behaviour that is rarely seen in the province. Video of the vortex was posted online Tuesday, along with an explanation.