Two rainstorms are due in Los Angeles, the first starting yesterday, Wednesday, and accumulating up to a half-inch of rain. A second, more substantial storm, begins Thursday night with up to 30 mph winds and up to three inches of rain and six inches in the foothills.

Because of burn scars, the wildfire areas in Pacific Palisades and Altadena have a heightened vulnerability to dangerous flooding. After a fire, soil can develop a top layer that repels water, resulting in flooding and debris flows that can disperse dangerous objects and materials.

At Governor Gavin Newsom’s direction, crews continue to coordinate and conduct comprehensive watershed and debris flow mitigation efforts to safeguard public health and protect the environment in affected communities.

Individuals can also take the following precautions:

• With rain expected, go online to DPW.lacounty.gov/dsg/sandbags to find locations where free sandbags are available through the LA County Dept. of Public Works; pack a “go-bag” and make an exit plan.
• Follow trusted sources, such as reputable media organizations and local officials. If told to evacuate, don’t wait.
• Avoid flood debris; it can include sharp and heavy hidden objects that can cause serious injury and worse. 
• Heed the guidance of local authorities. With flooding events come other hazards, including broken utility lines and disrupted infrastructure. Sign up for local emergency alerts.
• Purchase flood insurance from the National Flood Insurance Program, which is managed by FEMA. For more information, visit floodsmart.gov/wildfires or call (877) 336-2627.