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, ...

Meteorologists are tracking more bad weather for next week, which will immediately follow this week's disruptive trifecta of ...

A new rain storm is bearing down on California, including fire-ravaged Los Angeles, where residents are bracing for the possibility of mudslides and landslides.

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

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

There's no shortage of organizations and high-profile individuals driving Southern California's wildfire recovery. Have they ...

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

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

A teaser of a snowstorm arriving in Southwest Colorado on Tuesday night and moving through the region Wednesday will only ...

Southern California faces a risk of damaging debris flows this week, as a potentially strong atmospheric river is set to ...

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