Places like California, Oregon, Washington, Idaho, Utah and Nevada are (somewhat) used to this sort of phenomenon. You can ...

A stronger atmospheric river is set to hit Northern California on Monday and then hit L.A. County on Tuesday, aiding hopes of ...

One atmospheric river is already affecting the West right now, and at least two more are forecast to impact next week. The systems, each corridors of deep tropical moisture transported to ...

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

"The Pineapple Express is an atmospheric river which has its origin in the tropical Pacific," said AccuWeather Senior Meteorologist Alex Sosnowski. Since the pineapple express starts thousands of ...

An atmospheric river is expected to bring three major storms with significant rain, snow and wind to Northern Nevada for the next several days. But what is an atmospheric river? Here's a look at ...