when did the forest fire start in california
2017 California wildfires In December 2017, strong Santa Ana winds triggered a new round of wildfires, including the massive Thomas Fire in Ventura County.[11][12] The December 2017 fires forced over 212,000 people to evacuate, with the 6 largest fires burning over 257,000 acres (1,040Â km2) and more than 1,000 structures.[13][14]