The National Weather Service issued a warning of a "particularly dangerous situation" for parts of Los Angeles and Ventura counties from Monday afternoon through to Tuesday morning due to low humidity and damaging Santa Ana winds.
Gusts could peak at 113km/h along the coast and 160km/h in the mountains and foothills.
Windy weather and single-digit humidity are expected to linger through until Thursday, said Rich Thompson, a meteorologist for the National Weather Service.
He said the fire risk is also elevated because the region hasn't seen rain since April.
A big transition from above normal to below normal temperatures coming for most of the US in the coming days. What will this mean for you? Check out — National Weather Service (@NWS) https://t.co/VyWINDkBnn for the latest. pic.twitter.com/B61GsG0f7PJanuary 17, 2025
Critical fire weather with wind gusts up to 97km/h was also forecast for Southern California communities stretching to San Diego on Monday and Tuesday, with residents urged to take steps to get ready to evacuate such as creating an emergency kit and keeping cars filled with at least a half tank of petrol.
A windblown dust and ash advisory was also issued, as high winds could disperse ash from existing fire zones across Southern California.
The warnings come as firefighters continue to battle two major blazes in the Los Angeles area, the Palisades and Eaton fires, which have destroyed more than 14,000 structures since they broke out during fierce winds on January 7.
The Palisades fire was 52 per cent contained on Sunday and the Eaton fire 81 per cent contained, according to fire officials.
The Palisades and Eaton fires have destroyed more than 14,000 structures. (AP PHOTO)
Firefighters have made progress on the perimeter of the Palisades fire, which has blackened around 100sq/km near the Pacific coast, but there are areas in the interior that continue to burn, said Dan Collins, a spokesperson for the Palisades fire incident.
"There is always a possibility in a red flag warning something hot, or some type of burning material from the interior, could be perhaps whipped up and blown across the containment lines," Collins said.
While firefighters are fairly confident the Eaton fire further inland will remain contained, there are concerns a new fire could break out with vegetation especially dry for this time of year, said Carlos Herrera, an Eaton fire spokesperson.
California Governor Gavin Newsom has positioned fire engines, water-dropping aircraft and hand crews across the region to enable a quick response should a new fire break out, according to the governor's office of emergency services.
"This proactive approach has proven to be a critical component of California's wildfire response strategy, reducing response times and containing fires before they escalate," the office said.
