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.

Powerful winds and bone-dry conditions could pose a challenge to firefighters battling new wildfires in southern California on Thursday, including a blaze that swelled over the past day and forced tens of thousands of evacuations north of Los Angeles.

The fast-burning Hughes Fire prompted evacuations on Wednesday morning after it was reporting burning near Castaic Lake in Los Angeles County. (Source: KTTV)

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.

Firefighters battled two new brush fires - the Hughes Fire near Castaic Lake and the Sepulveda Fire in Bel Air, along the 405 Freeway.

More than 50,000 are under evacuation orders or warnings as a new wind-driven wildfire spreads in the mountains north of Los Angeles.

Overnight water drops helped stop the spread of a huge wildfire churning through rugged mountains north of Los Angeles.

The Hughes Fire near Castaic, California, has burned over 5,000 acres, prompting evacuations and school closures.

Overnight water drops helped stop the spread of a huge wildfire churning through rugged mountains north of Los Angeles and firefighters battled to increase containment as dangerous winds whipped up again Thursday.

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.