According to state records, four of the deadliest wildfires in California's history have occurred within the last twelve months. In October, fires devastated Northern California's Napa and Sonoma counties, destroying an estimated 8,900 structures and leaving over forty people dead. Now, the Thomas Fire in Ventura County has already burned 96,000 acres as of Thursday, nearly three times bigger than the most destructive of the Napa-Sonoma fires.