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

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

The Pineapple Express is an atmospheric river in the sky that comes from the Pacific near Hawaii. When it hits the California ...

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. AccuWeather warned of possible flooding, avalanches, strong ...

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

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

In seconds, the wreckage of each aircraft plunged into the icy Potomac River, the victims with it. All perished.

While driving home, Ari Shulman said a "spray of sparks" in the sky caught his attention as he watched in horror the midair ...

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.