The NWS says excessive rainfall is expected to cause flooding along the Russian River, affecting roadways and agricultural land.

A house was swept into the Russian River by a mudslide in Forestville near the Forest Hills Bridge Tuesday afternoon as an atmospheric river battered Northern California.

The rainfall is predicted to push the Russian River up to nearly 33 feet and into the minor flood stage Wednesday morning in Guerneville.

The rainfall was so intense that in one dramatic example, a mudslide caused an entire house to slip down a bank into the Russian River on Tuesday.

A new atmospheric river is slamming California, including fire-ravaged Los Angeles, where residents are bracing for the possibility of mudslides and landslides.

Areas charred by last month's wildfires in Southern California now face a new threat from a powerful, but fast-moving Pacific storm. Here's what you need to know about this threat.

The weather phenomena are common for California winters, but they could cause dangerous debris flows or mudslides in recently burned areas.