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

An atmospheric river event is forecast to bring rainfall, snow, and the potential for flooding to parts of California this ...

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

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

The weather phenomena are common for California winters, but they could cause dangerous debris flows or mudslides in recently ...

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

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

Torrential rains and mountain snow began moving into California on Wednesday, bringing a high risk of flooding, landslides in ...

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

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

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.

Officials in California distributed sandbags, prepositioned rescue swimmers and told residents to have their go-bags ready as ...