Rain eased on Monday after Southern California's first significant storm of the season brought weekend downpours that aided firefighters but caused ash, mud and debris to flow across streets in wildfire-burned areas.

Southern California's first major storm of the season brought rain and snow, helping to extinguish wildfires but causing mudflows and road closures. Emergency crews worked to clear debris, and the storm disrupted schools and transport routes.

More rain fell Monday on parts of Southern California after causing mudflows over the weekend, helping firefighters but boosting the risk of toxic ash runoff in areas scorched by Los Angeles-area wildfires.

Josh Altman argues that up to 70% of Pacific Palisades residents won't return or rebuild their homes due to "simple math" following the devastating wildfires.

For the first time since the devastating fire erupted, all Pacific Palisades residents were allowed to return home, as evacuation orders for the final two neighborhoods in Los Angeles were lifted shortly after noon on Monday,