By Alex Dobuzinskis

LOS ANGELES (Reuters) – A California wildfire was close on Saturday to becoming the state’s third largest blaze on record, with more devastation possible from a resurgence of the harsh winds that have fueled the deadly fire’s growth.

The so-called Thomas Fire has destroyed more than 1,000 structures, including about 750 homes, in coastal communities in Southern California since erupting on Dec. 4, the California Department of Forestry and Fire Protection said in a statement.

It has cost $97 million to fight the 256,000-acre (103,600-hectare) blaze, with thousands of firefighters contending with it around the clock and helicopters and airplanes being used to drop retardant on the flames.

Firefighters continue to battle the Thomas fire, a wildfire near Fillmore, California, December 14, 2017. REUTERS/Gene Blevins

The vast landscape charred by the blaze, which is centered less than 100 miles (161 km) northwest of downtown Los Angeles, is approaching the 257,314 acres (104,131 hectares) destroyed by California’s Rim Fire in 2013. The Rim Fire is the third-largest blaze on record in the state.

The Thomas Fire is only 35 percent contained and it threatens 18,000 structures, officials said, including some in the wealthy enclave of Montecito just outside the city of Santa Barbara. The blaze is chewing up tall grass and brush as it expands along the scenic Pacific Coast.

The hot Santa Ana winds that have helped the fire grow, at times sending embers far ahead of its main flank, were forecast to remain strong through Saturday evening in the Santa Barbara County mountains, the National Weather Service warned. Gusts of up to 40 miles per hour (64 km/h) were expected.

From Saturday night through Sunday evening, the winds could lash neighboring Ventura County, the Weather Service said. That is where the Thomas Fire first began due to unknown causes, and where it was still burning.

Cal Fire engineer Cory Iverson, 32, died on Thursday while battling the flames near the Ventura County community of Fillmore. Fire officials said Iverson, the blaze’s first fatality, left behind a pregnant wife and 2-year-old daughter.

The Thomas Fire was one of several major blazes that broke out in Southern California this month, although the others have been contained.

The blazes forced many schools to close for days, shut roads and drove hundreds of thousands from their homes. The fires were also responsible for poor air quality throughout Southern California.

(Additional reporting by Dan Whitcomb in Los Angeles; Editing by Mark Potter)