Newly released footage of the Tennant fire in California filmed on 29 June shows a fire tornado near the Klamath national forest. Large wildfires can heat air so much that huge clouds develop. In strong winds, these can rotate and sometimes produce a tornado, or fire whirl. California’s wildfire season is already more extreme than in 2020. Officials say the length of fire season has increased by 75 days across the Sierras, in keeping with a rise in the extent of forest fires statewide.
US west heatwave: 31 million people brace for record-breaking temperatures