Throughout Southern California, the bases of mountain ranges are strewn with the effluent of past debris flows — called alluvial fans — and cities in the sprawling Los Angeles basin have been ...

At least some debris flow is ongoing in the Malibu area, with portions of the Pacific Coast Highway closed. Roughly 1 to 2 inches has fallen across the Los Angeles region, and more broadly from ...

Over 20 million people are under a flood watch. Dangerous, heavy rain pounded the Los Angeles area early Thursday, bringing a threat of flooding and debris flow to spots impacted by the recent ...

The National Weather Service plans to issue a flood watch beginning at 6 p.m. Wednesday and lasting through Thursday afternoon, warning of the possibility of flash flooding and debris flows caused ...

Though wildfires around Los Angeles are contained, foothill communities remain at risk of debris flows. Heavy rain could trigger dangerous mudslides in burn areas like Altadena and Pasadena.