A fast-moving wildfire exploded to roughly 10,200 acres near the Los Angeles County community of Castaic Wednesday morning, prompting mandatory evacuation orders and road closures, authorities said.

Firefighters are responding to a brush fire in the Castaic area of Los Angeles County Wednesday morning, according to the Angeles National Forest.

Coverage of when the Hughes fire exploded north of Castaic, the areas under evacuation orders and an extended red flag warning.

Some evacuation orders have been lifted as firefighters with air support slowed the spread of the Hughes Fire, but new blazes erupted in other parts of SoCal.

A fast-moving brush fire erupted in Los Angeles County on Wednesday morning, quickly racing across 1,000 acres of terrain, aided by heavy, dry fuels and pushed by gusting Santa Ana winds.

Officials ordered evacuations in the area surrounding the Hughes Fire on Wednesday morning, located near Castaic Lake in Los Angeles County.

The Hughes, Sepulveda and Laguna fires are among the latest blazes for Southern California during a fourth consecutive day of red flag fire weather warnings.

The Hughes Fire has spread over 5,054 acres after starting just before lunchtime in Los Angeles County's Castaic Lake area on Wednesday.

Much of Southern California is expected to get doused with desperately needed rainfall this weekend – but this could unleash new hazards.

Red flag fire warnings remain in place for Los Angeles County and much of Southern California. Inmates at the Pitchess Detention Center, in Castaic south of the fire, are being moved out of the jail in a partial evacuation, the Los Angeles County Sheriff's Department confirmed to ABC News.

Firefighters gained more ground Thursday on a fast-moving brushfire that erupted north of Los Angeles the day before and within hours exploded to thousands of acres amid high winds, officials said.