Bike Fire Burns 475 Acres in Santa Clarita

A fast-moving brush fire in Santa Clarita, California, burned at least 475 acres after starting Sunday around 1:30 p.m. near Cambria Estates Lane and Ravenhill Road, according to the Los Angeles County Fire Department.

The Bike Fire reached 68% containment as crews responded, while evacuation orders and warnings issued earlier were downgraded to an advisory, according to authorities.

The Los Angeles County Fire Department said the blaze was initially reported at about 5 acres before expanding rapidly. Officials later adjusted mapping estimates before confirming the larger burned area.

Authorities described the fire conditions during the response.

"With erratic fire behavior," said the Los Angeles County Fire Department.

By 4 p.m., officials said the fire had grown to 275 acres, then later reported a mapped area of 172 acres before the size increased to 475 acres just before 8:30 p.m.

Two air tankers and two Type 1 helicopters were mobilized to assist firefighting operations, according to officials. The containment level remained at 68% as the response continued.

The Santa Clarita area had also seen two other wildfires in the previous week, according to the report. The Bouquet Fire near Bouquet Canyon Road reached 83% containment after burning 1,048 acres.

The Danny Fire, reported Oct. 8 about 2 miles south of Gorman, stopped advancing quickly and was 96% contained at 150 acres, according to officials.