Silverado Canyon fire
Flames from the brush fire in Silverado Canyon. Courtesy OnScene.TV

A wind-driven brush fire in Silverado Canyon sparked by a house fire exploded to 3,600 acres Thursday morning and was growing rapidly as mandatory and voluntary evacuations were ordered for residents in a large portion of Orange County.

Mandatory evacuations were in effect in the Modjeska, Silverado and Williams Canyon areas and voluntary evacuations were issued for the following areas:

— Lake Forest, from the 241 Toll Road, along Bake Parkway to Musick and north to the border with Irvine and from the 241 Toll Road north to Bake Parkway to Foothill Ranch Community Ranch;

— Borrego Canyon;

— Foothill Ranch;

— Baker Ranch;

— Portola Hills;

— Live Oak Canyon;

— Trabuco Canyon;

— Rose Canyon;

— Valley Vista Way;

— Meadow Ridge Drive.

Evacuees were strongly encouraged to stay with family or friends or in a hotel, the OCFA said.

“Due to COVID-19, no congregate shelter is offered,” the authority tweeted about 5:20 a.m. “A temporary OC Red Cross evacuation point is at 8405 E. Chapman Ave, Orange. Info and restrooms available.”

Orange County Fire Authority personnel responded to the 29400 block of Silverado Canyon Drive at about 10:15 p.m. Wednesday. No injuries were immediately reported.

Ground crews were being assisted in the fight against the Bond Fire by fire helicopters and a helitanker, the OCFA said. More than 240 firefighters were on the scene, the OCFA said. The agency is in unified command with the U.S. Forest Service.

The Orange County Sheriff’s Department announced that the county’s Emergency Operations Center was activated to support the firefighting effort. A public safety map with evacuation orders and warnings was available at

Santiago Canyon Road from Jackson Ranch Road to the Eastern Transportation (241 Toll Road) Corridor was closed.

The Irvine Police Department alerted residents that it is aware of the Bond Fire burning nearby and, while fire is visible from within the city, it was moving away from Irvine and there was no current threat to residents.

Inland Orange County is under a red-flag warning until 10 p.m. Saturday for extreme fire danger due to high winds and low relative humidity.

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