Red flag warnings are in effect until Thursday for parts of Los Angeles, Ventura and San Diego due to low humidity and an uptick in Santa Ana winds.

Residents of San Diego County are facing evacuation orders Tuesday as the Lilac Fire and Pala Fire have broken out in the region, officials say.

Red flag warnings are in effect until Thursday for parts of Los Angeles, Ventura and San Diego because of low humidity and relentless Santa Ana winds.

Several counties in Southern California faced "critical" fire risks this week, according to an AccuWeather forecast.

San Diego County remains under the grip of another round of moderate to strong Santa Ana winds, paired with extremely dry air, elevating critical fire weather concerns.

Wildfires in Southern California prompt evacuations and school closures as Santa Ana winds exacerbate conditions. Communities remain on high alert.- Watch Video on English Oneindia

More wildfires started in Southern California on Tuesday night and Wednesday, as gusty Santa Ana winds continue to plague the state this week.

SAN DIEGO — Firefighters are battling a brush fire in Rancho Bernardo on Wednesday that is sending large plumes of smoke into the air that can be seen miles away. The San Diego County fire was first reported around 9 a.m. near Bernardo Center Dr. and Camino Del Norte. Fire crews were calling for air support as structures were threatened.

Two new wildfires started in Southern California Tuesday night and into Wednesday, as gusty Santa Ana winds continue to plague the state this week.

Santa Ana winds will continue whipping through Southern California through Thursday, sparking fears that progress made fighting wildfires that have scorched over 40,000 acres and left 28 dead could be reversed and more blazes could break out.

This weekend's cool temperatures and higher humidity are expected to give way to more Santa Anas and a new red flag warning Monday.