An expert at the Scripps Institution of Oceanography explains the weather phenomenon that can wreak havoc across California.

An atmospheric river is essentially a narrow band of Pacific moisture, water vapor, that is funneled into a long narrow flow.

In the northern Sierra Nevada, snow will fall in feet — not inches. And in the Northern California Coastal Range, a general 5 ...

Heavy precipitation is falling mostly in mountain areas. A flood watch in also in effect for the coast of central California, ...

The National Weather Service said 2-4 inches of rain are expected in lower elevations, 4-8 inches in the higher ones.

Back-to-back atmospheric river storms are set to hit Los Angeles County this week — giving the region much-needed moisture ...

Weather systems that affect the West Coast of the United States often have their origins in the northern Pacific Ocean. This is because the jet stream usually flows in a general west-to-east fashion.

JUST CONNECTED TO THIS BIG TAP, THIS ATMOSPHERIC RIVER THAT CONNECTS ALL THE WAY DOWN TO THE TROPICAL PACIFIC. NOW, THERE ARE ...

What’s the connection between climate change and an increase in so-called atmospheric rivers?

An atmospheric river is a massive band of water vapor that carries rain to ... They typically begin over tropical regions, where warm temperatures and strong winds respectively cause ocean water ...