Parts of northern California could see up to a foot of rain, but Phoenix will remain dry and warmer than usual.

California's two largest reservoirs, Lake Shasta and Lake Oroville, saw water level increases over the weekend after an ...

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

A University of Hawaii at Mānoa study on the freezing of water droplets suspended in air sheds light on a key process in ...

A weather system fueled by a "Pineapple Express" originating near Hawaii will unleash torrential rain across Northern ...

Heavy precipitation is falling mostly in mountain areas. A flood watch in also in effect for the coast of central California, ...

The term “atmospheric river” was coined in 1994 and has since quickly gained popularity. But what does it really mean?

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

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

Heavy rain is hitting the Bay Area and coastal areas this week as an atmospheric river moves through Northern California.

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