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

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

The storm brought heavy rain and high-elevation snowfall to Northern California over the weekend, and a similar one is ...

Parts of Pacific Coast Highway remained closed due to heavy flooding and mudslides in Southern California, according to state ...

Our weather teams says Sierra travel is highly discouraged with whiteout conditions at times on Thursday. Instead, you could ...

Another atmospheric river is expected to bring heavy rain to most parts of California this week ... sometimes referred to as "rivers in the sky" – are long, narrow tracts of the Earth’s ...