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

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

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

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

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

AUSTIN (KXAN) — The term “atmospheric river” has become more common in recent years, as it clearly describes a unique weather phenomenon. An atmospheric river is essentially a narrow band of ...

Pineapple Express has drenched Northern California in the last few days—but what exactly is it? How common is it? Also, go ...

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

The first in a series of three significant storms landed Friday in Northern California, with the forecast for warm rains prompting the Yuba Water Agency to increase flows from Bullards Bar Reservoir ...

A flood watch from the National Weather Service will be in effect for the Bay Area and Central Coast from 4 p.m. Monday through 4 a.m. Wednesday as a storm system moves through the region through the ...

The Pineapple Express is a type of atmospheric river— a narrow, fast-moving "river in the sky" that transports significant ...