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.

Residents and first responders were on high alert for possible land movement in recent burn scar areas as a winter storm moves in.

The highest intensity rain was expected between 4 p.m. on Sunday and 4 p.m. on Monday, according to the service. Los Angeles and Ventura Counties were expected to get up to an inch of total rainfall, and up to three inches was forecast in the mountains around Los Angeles.

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.

Rain fell on parts of Southern California on Sunday and the scattered showers were expected to continue overnight, boosting the risk of toxic ash runoff in areas scorched by Los Angeles-area wildfires.

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.

Three active fires in Los Angeles neared full containment Sunday, as the region receives much-needed rain that has produced flood and mudslide warnings lasting through Monday. Saturday, 4:00 p.m. PST Cal Fire data marked the Palisades Fire at 87% containment, the Eaton Fire at 95% containment and the Hughes Fire at 92% containment.

With parts of Los Angeles County still smoldering from wildfires and new blazes flaring up, expected rainfall this weekend would seem like a welcome relief.

After a weekend of reprieve allowing fire teams to continue making progress battling the deadly infernos burning in Los Angeles County, Southern California now faces another round of fire-fueling Santa Ana Winds Monday.

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.

Flood watches were in effect through 4 p.m. Monday for burn areas from recent fires that broke out around the Pacific Palisades neighborhood in Los Angeles, Altadena and Castaic Lake, said Joe Sirard, a meteorologist for the National Weather Service in Oxnard.