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

Most of the California coast is under a flood alert as torrential rain and mountain snow intensified over California Thursday ...

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

Downtown San Francisco was drier, but it still had a big day. The area recorded 2.53 inches on Tuesday, its highest daily ...

Flood watches are posted up and down the California coast as an atmospheric river will bring torrential rain to many areas in need of moisture but too much rain in burn scar areas could lead to ...

Just a month after fierce Santa Ana winds propelled a firestorm across Los Angeles County, residents faced another extreme ...

A group of scientists from Southern California recently came to the Bay Area to send up a series of weather balloons to help ...

This second event comes on the heels of a "Pineapple Express" atmospheric river event over the weekend that has pushed rainfall totals to more than 3 inches across the hills north of the Bay Area ...

This second event comes on the heels of a "Pineapple Express" atmospheric river event over the weekend that has pushed rainfall totals to more than 3 inches across the hills north of the Bay Area ...

Happy weekend, Utah! We have a dry set up in southern Utah for the weekend, while a moisture-rich storm targets the northern half of the state.

The worst of the rainfall in the first atmospheric river to hit San Diego this year has passed, but the impacts will still be felt for the next few days at the region’s beaches.

A damage assessment team with the National Weather Service confirmed a weak tornado occurred in Oxnard on Thursday. The weather event tracked from the Country Club Mobile Estates to the Ocean-Aire ...