 The Thomas Fire was also estimated to be at least the 10th most destructive wildfire on record in California.On the morning of December 11, the Thomas Fire had grown to , while containment of the fire had increased to 15%.After this expansion in size, the Thomas Fire's northwestern flank almost linked up with its southwestern flank, to the east of Carpinteria, cutting across parts of Route 150, and threatening to envelop Ojai and Lake Casitas.