An atmospheric river is expected to hit California later this week, bringing heavy rain and wind to much of the state.

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

Snow made a rare appearance in the Bay Area early Wednesday morning, with Mount Hamilton getting a fresh coat of snow. Video ...

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

Southern California is in desperate need of rain, but it could come far too fast this week, especially in areas recently ...

The National Weather Service said 2-4 inches of rain are expected in lower elevations, 4-8 inches in the higher ones.

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

LOS ANGELES (KTLA) – A deadly crash involving a wrong-way driver forced the closure of the southbound 405 Freeway through the ...

The latest NWS forecast says an atmospheric river remains on track to deliver as much as 2 inches of rain in Fresno on ...

About 2 to 3 inches are expected to fall across most of the North Bay, but the coastal mountains in Sonoma County could get ...

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

Rain has begun to fall in San Luis Obispo County as it braces for an atmospheric river-fueled storm that is slated to bring ...