An expert at the Scripps Institution of Oceanography explains the weather phenomenon that can wreak havoc across California.

Storms dumped heavy snow and freezing rain on a swath of the eastern U.S. stretching from Kentucky to the nation’s capital, ...

At numerous major destinations like Mammoth Mountain and Alta Ski Area, significant snow totals are expected as the long ...

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

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

It's high time California water bureaucrats cut out their act and provide farmers and other citizens realistic water supply ...

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

America's West Coast is about to be battered by one of the most intense weather events in years, as a ferocious storm ...

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

Impact from a moisture-laden storm is expected to persist in the San Francisco Bay Area through Friday, with more rain likely.

At atmospheric river continues to slam portions of California Tuesday, with multiple inches of rain expected until Wednesday.