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

A KOIN 6 Weather Alert fades Saturday morning as rain showers overcome a wintry mix for some above 1,000 feet.

There is now a 30% chance of intense rain between Feb. 12 and 15 in Los Angeles, Ventura, Santa Barbara and San Luis Obispo ...

After an atmospheric river doused the North Bay Tuesday, forecasters say more rain will return to the region Thursday and ...

Another atmospheric river-driven storm will impact Northern California and the Pacific Northwest starting Thursday morning. That event is forecast to be somewhat less impactful than the high winds and ...

As we reach midweek, Meteorologist Jeff Fox brings a comprehensive weather update for different regions across the U.S. The ...

A powerful winter storm is blasting the Northwest with heavy snow and fierce winds, as residents are warned to stay off the roads.

Governor Newsom announced that Cal OES was monitoring weather impacts and working closely with local areas that were ...

Summit County, and the rest of the state of Utah, has begun this week under a proverbial weather blowtorch. An atmospheric ...

A pineapple express is a type of strong atmospheric river that carries moisture toward the western U.S., bringing the risk of ...

While the West Coast will feel the soggy effects of an atmospheric river this week, the system won’t bring any moisture into ...

A much wetter stretch is ahead from California to Washington as multiple systems crash into the Pacific Coast. Here’s how ...