The National Weather Service issued a Red Flag Warning starting Monday for San Diego County's inland valleys and mountains.

Southern California will experience cooler and breezy temperatures over the weekend before another Santa Ana event develops early next week.

Another wave of Santa Ana winds arrive Saturday, likely generating gusts over 40 mph throughout the Inland Empire going into Sunday.

Things will remain relatively calm for the weekend, but "a difficult to resolve weather pattern" begins early to mid-next week, the NWS said.

After a brief break on Sunday afternoon, another prolonged round of gusty Santa Ana winds is expected to develop, forecasters say.

National Weather Service offices across Southern California are warning residents of an increase in weather conditions that are conducive to rapid fire growth. Meteorologists are most concerned about conditions from Monday afternoon through Wednesday morning when winds will be at their peak and relative humidity will be low.

The winds fueling Southern California wildfires form when a high-pressure system develops over the Great Basin in Utah and Nevada

The potentially hazardous conditions are expected Tuesday afternoon through Wednesday in Los Angeles and Ventura counties, according to the NWS.

The particularly dangerous situation alert is relatively new to Southern California but has been issued before the recent wildfires that have caused devastation across LA County.

Santa Ana occurs during the cooler months between September and May. Southern California is particularly ... and rapidly spread. The National Weather Service has issued an extreme weather warning ...

Firefighters made progress battling back the deadly Los Angeles blazes overnight into Saturday, Jan, 18. as President-elect Donald Trump said he likely will visit the fire-torn areas next week. “I will be, probably, at the end of the week,” Trump told NBC News in an interview on Saturday.