An atmospheric river is expected to bring torrential rain to California this week, threatening parts of the state with flash floods and mudslides.

Three days of drenching rain, flooding and mudslides have forced evacuations and road closures, including a portion of the Pacific Coast Highway from Malibu and Pacific Palisades. The Pacific Palisades neighborhood of Los Angeles,

The strongest atmospheric river of the season left roads submerged in sludge and created conditions for mudslides on wildfire-scarred hillsides.