Following an unusually dry January, a powerful atmospheric river known as the ‘Pineapple Express’ has ... and its humidity falls — sometimes to less than 10%. Subscribe to our UPSC newsletter and stay ...

Weather balloons and “hurricane hunter” planes aid the science of understanding California’s atmospheric rivers.

An atmospheric river event is forecast to rainfall, snow, and the potential for flooding to parts of California this week.

Days after an atmospheric river brought record-setting rainfall to California, the state is in the crosshairs of another rainy storm system.

An atmospheric river is pounding Northern California with heavy rain and the threat of flooding before heading to Southern California.

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

A major atmospheric river storm — strong enough to potentially rival some of the extreme storms that have walloped Southern California in recent winters — is barreling toward the coast ...

An atmospheric river event that slammed California this week is expected to subside Wednesday after causing some flooding, mudslides and major downpours in the northern part of the state.

A rainstorm caused by an atmospheric river brought light to moderate rainfall throughout the Los Angeles area. A second storm is already making its way toward the region. The National Weather ...

Despite Wednesday's sunny weather, the Sonoma County Sheriff's Office said that previous evacuation orders along the Russian River prompted by this week's atmospheric river are still in effect.

SAN FRANCISCO – The second in a trio of atmospheric river storms blasted Northern California on Tuesday with heavy rain, damaging wind gusts, feet of mountain snow, and even severe thunderstorms ...