Atmospheric rivers are long and relatively narrow bands of water vapor that form over an ocean and flow through the sky.

Rain totals will range from about 2 to 4 inches over the 3-day stretch from Wednesday to Friday with the heaviest accumulations in North County.

The atmospheric river battering the West Coast is expected to deliver another round of snow before the system moves out.

An atmospheric river is forecast to hit California early next week, bringing heavy rainfall as well as potential flooding and landslides, with the National Weather Service (NWS) issuing flood watches ...

Scientists at UC Santa Barbara found that atmospheric rivers in both hemispheres have moved approximately 6° to 10° closer to ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Qian Cao, University of California, San Diego (THE CONVERSATION) Along the U.S. West ...

Another atmospheric river is forecast to drench the Bay Area beginning Tuesday evening and lasting through Christmas, ...

As the United States begins to recover from a week of severe weather that left dozens dead, more storms are already in the forecast. An atmospheric river began moving through California on Tuesday, ...

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PORTLAND, Ore. (KOIN) — The wet and windy weather felt across the Pacific Northwest is thanks to a long band of water vapor stretching across the Pacific Ocean. An atmospheric river continues to ...

PORTLAND, Ore. (KOIN) — Flooding rains and lingering storm impacts come as the atmospheric river that hit the Pacific Northwest this week will make another visit to the region next week. Rainfall ...