Atmospheric rivers are long and relatively narrow bands of water vapor that form over an ocean and flow through the sky, ...

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

An atmospheric river brought additional rain, strong winds, and flooding to the Bay Area Tuesday, triggering evacuation ...

Here's how much is expected. The storm flooded some areas in Shasta County. More rain is on the way after a windy, ...

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

Another atmospheric river is expected to bring heavy rain to most parts of California this week, raising concerns over flooding on the heels of an earlier system that broke daily rainfall records ...

The first in what’s expected to be a series of three atmospheric river storms has arrived in California. Forecasters are hopeful the winter storms might finally lift Los Angeles County from the ...