The six blazes vary in size. Together, they are larger than the areas of New York City and Boston combined.
Thomas Fire: This inferno has destroyed 230,000 acres as of Monday morning and was only about 15% contained. It started December 4 in Ventura County and has since spread into neighboring Santa Barbara County. The Thomas fire has already destroyed 790 structures, Ventura County Sheriff Captain Garo Kuredjian told CNN. The costs of fighting the blaze have topped $34 million.
Creek Fire: The second-largest blaze ignited Tuesday in neighboring Los Angeles County. It has burned 15,619 acres and is 95% contained.
Rye Fire: This fire broke out Tuesday in Los Angeles County and has torched 6,049 acres. Firefighters are making progress, with 93% of the blaze contained.
Lilac Fire: This fast-moving fire has consumed 4,100 acres since it ignited Thursday in San Diego County. Firefighters have regained control of the blaze, and it's now 80% contained.
Skirball Fire: It started Wednesday as a brush fire in Los Angeles County, north of Brentwood. The Skirball Fire has destroyed 422 acres and is 85% contained.
Liberty Fire: This blaze in Riverside County has burned 300 acres since it ignited Thursday. It's 100% contained, but authorities are monitoring the fire because of a forecasted increase in winds.