By Amy McDermott for the Proceedings of the National Academy of Science. Broadcast version by Mark Richardson for for ...

Residents of a Southern California mountain community near the Eaton Fire burn scar are digging out of roads submerged in ...

A powerful storm fueled by an atmospheric river is drenching California, triggering evacuation orders and flood warnings.

There were 106 homes under mandatory evacuation order. The area will be limited to only residents through 2 p.m. Friday.

As of midafternoon, rain had picked up in some areas, and Caltrans crews were working at many locations to clear debris from ...

A swift debris flow swept a Los Angeles Fire Department vehicle off the Pacific Coast Highway and into the ocean in Malibu on ...

For the second time this year, Southern Californians are evacuating their homes as heavy rain threatens new destruction in ...

Street flooding and mudslides, and a weak tornado, were reported across the region as the storm barreled through Thursday evening.

Southern California's strongest atmospheric river storm of the winter is arriving Thursday, and it's expected to bring ...

Crews have rushed to clear out basins designed to catch mud, rocks and other debris from tumbling into neighborhoods as ...