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

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

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

The Bay Area will see significant storm impacts Tuesday as an atmospheric river brings heavy rain, urban and river flooding, ...

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

An atmospheric river that has brought rain and wind gusts throughout the Bay Area over the past few days had its stormiest ...

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 ...