Officials are preparing themselves - and residents - for the upcoming rain that is raising concern for possible mudslides that could bring more damage to areas previously hit by the wildfires.
Mayor Karen Bass has issued an executive order to expedite cleanup efforts in burn areas and mitigate the environmental impacts of fire-related pollutants. She ordered crews to remove vegetation, shore up hillsides, install barriers and reinforce roads ahead of the possible weekend rain, which could create mud and debris flows.
While officials say rain could help clear up air quality, the potential for mudslides and toxic runoff filled with debris from the fires is high.
"I think the public health advice that we want to get out there is for folks to be aware of what they need to do to protect themselves from ash and soot and any fire debris," said Nichole Quick, chief medical consultant for the L.A. County Department of Public Health.
"Number one is we want to avoid contact," Quick added. "Whether that be from breathing small particles or contact with skin, eyes and so forth."
The Los Angeles area is expected to get a quarter of an inch to half an inch of rain beginning Saturday, while the mountain communities will see about 2-4 inches of snow.
"This fire burned two feet into the root. There's nothing left to keep the soil in place, and even one drop of rain will come down seven times faster than it would have prior to these fires," said Lisa Derderian with the city of Pasadena.
Officials across the affected areas began preparing Thursday for the upcoming rain by filling and stacking more than 15,000 sandbags, available for residents free of charge.
Thousands of acres of slopes are potential slide dangers now that a lot of the vegetation that anchors the soil is gone. The city hopes people near the fire areas start enforcing their properties as soon as possible, before this weekend's expected rain.
"We have concerns for the next five years on mud and debris flow on this current fire, so there's a lot to do," said Derderian.
Residents in Pacific Palisades prepare for the threat of mudslides with the upcoming rain
Meanwhile, a massive collection of state, county and public utility resources are available at the Santa Anita racetrack. Affected residents can find everything from power equipment to K-rails and more than 400 members of the California Conservation Corps.
"The CCC is launching works that will help mitigate a lot of the debris flow of contaminants into the watershed of Los Angeles County," said Dana Howard with the California Conservation Corps.
Residents can pick up free sandbags at the following locations:
--Altadena Golf Course 1456 east Mendocino Street Altadena, CA 91001
--Victory Park 2575 Paloma Street Pasadena, CA 91107
--Robinson Park 1081 north Fair Oaks Avenue Pasadena, CA 91103
--Las Flores Creek Park 3895 Rambla Pacifico Street Malibu, CA 90265
The Associated Press contributed to this report.