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

Atmospheric rivers, also described as "rivers in the sky," cause more than 80 percent of all flooding damage across the West ...

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

The rain will be "generally beneficial" in the Los Angeles area, but there is a small risk of burn scar debris flows.

It's a type of atmospheric river that forms a long ... These "rivers in the sky" have been responsible for as much as 65% of the West's extreme rain and snow events, a 2017 study said.

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

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

Atmospheric river storms are long plumes of water vapor that can pour over from the Pacific Ocean into California. They carry so much water that they’re said to be like a river in the sky.

Atmospheric rivers are long, narrow regions of water vapor in the atmosphere, like a river in the sky. These systems gather moisture from the tropics near the equator and move it toward the poles.