(Katelynn & Jordan Hewlett via AP) A funnel appears in a thick plume of smoke from the Loyalton Fire is seen in Lassen County, Calif., Saturday, Aug. 15, 2020. A wildfire in Northern California on Saturday spawned at least one fire tornado that prompted the National Weather Service to issue a tornado warning. The Loyalton Fire in Lassen County, Calif., burned intensely amid hot and dry conditions on Saturday afternoon.