Southern California is bracing for an "unprecedented" third Particularly Dangerous Situation warning in a month, as extreme Santa Ana winds increase fire danger.

Millions of Southern Californians are on edge as a final round of dangerous fire weather is forecast for the region on Wednesday, along with a rare warning of a “Particularly Dangerous Situation” for an area near where two massive blazes have killed

Forecasters warn that dangerous winds will buffet Southern California for at least two more days as new wildfires broke out and a pair of major Los Angeles-area blazes burned for a third week.

This is the third PDS warning issued within 14 days in the greater Los Angeles area, which is "unprecedented" for the region, according to the National Weather Service.