Southern California is braced for "extremely critical fire conditions" caused by a new period of Santa Ana winds of up to 50 mph.

Firefighters on Tuesday held the line against two massive wildfires that have ravaged parts of Los Angeles for the past week, even as desert winds and a parched landscape presented extremely hazardous conditions.

Dangerous Santa Ana winds are expected to return to the Los Angeles area this week, potentially fueling the growth of new and existing wildfires, according to FOX Weather.