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

The definition: An atmospheric river (AR) is a long plume of moisture that stretches from the tropics or subtropics into ...

An atmospheric river is essentially a narrow band of Pacific moisture, water vapor, that is funneled into a long narrow flow.

While the wet weather may bring an end to a devastating run of wildfires in the state, it could also cause flooding and other hazards.

An atmospheric river brought heavy rain and mountain snow to parts of California and the Pacific Northwest on Friday, January 31.Satellite imagery released by the Cooperative Institute for Research in ...