Areas charred by last month's wildfires in Southern California now face a new threat from a powerful, but fast-moving Pacific ...

An atmospheric river event is forecast to rainfall, snow, and the potential for flooding to parts of California this week.

Weather balloons and “hurricane hunter” planes aid the science of understanding California’s atmospheric rivers.

Days after an atmospheric river brought record-setting rainfall to California, the state is in the crosshairs of another ...

Another atmospheric river is preparing to take aim at the Bay Area and Central California, bringing “impactful rain,” flash ...

Downtown San Francisco was drier, but it still had a big day. The area recorded 2.53 inches on Tuesday, its highest daily ...

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

The rain will be "generally beneficial" in the Los Angeles area, but there is a small risk of burn scar debris flows.

There is now a 30% chance of intense rain between Feb. 12 and 15 in Los Angeles, Ventura, Santa Barbara and San Luis Obispo ...

Atmospheric rivers, also described as "rivers in the sky," cause more than 80 percent of all flooding damage across the West ...

In what has become a much-anticipated sight, the morning glory spillway at Lake Berryessa is now active after this week's ...

Cooler, cloudier conditions and periods of light rain are forecast in County through Friday night as a weakening atmospheric ...