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

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

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

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

An atmospheric river is pounding Northern California with heavy rain and the threat of flooding before heading to Southern California.

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

Where a river begins Features of a river's upper course How waterfalls, gorges and other physical features are formed Wildlife you might find near or in the upper course This resource is suitable ...