A rare alert called a "Particularly Dangerous Situation" is in effect Wednesday for parts of fire-ravaged southern California. The National Weather Service initially issued the warning for Tuesday but extended it after Tuesday’s conditions were less hazardous than expected.

A warming trend is anticipated by the weekend, pushing temperatures back into the 70s for most coastal and valley areas, thanks to a “weak offshore flow” between Saturday and Monday.

The National Weather Service has provided a detailed timeline of when rain is expected to hit Los Angeles and Southern California this weekend.

More than an inch of rain fell in many areas, loosening Los Angeles hillsides burned bare by the recent blaze near the Pacific Palisades neighborhood.

The wet weather will bring relief to Southern California after a prolonged period of dryness, but there’s concern that any bursts of heavy rainfall could cause flooding.

After weekend rainfall caused mudslides in wildfire burn scar areas and snow created dangerous driving conditions, several roadways and schools remain closed across the Southern California region.

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.

A fire broke out Wednesday night along the 405 Freeway in the Sepulveda Pass near the Getty Center, burning about 20 acres and spurring an evacuation warning.

A cold storm system moves into Southern California this weekend, bringing with it the chance for rain and snow in some areas, also sparking concern for flash floods in recent burn scar areas.

There is a 10% to 20% chance of flash flooding and landslides in some recently burned areas of Los Angeles County, forecasters say, including the Palisades and Eaton fire areas.

Los Angeles, United States - Los Angeles County experienced its first significant rain storm in more than eight months with flash flood warnings issued by the National Weather Service. This return of rain triggered mudslides and debris in areas where the recent fires took place.