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

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

A major atmospheric river storm is barreling toward California, raising the specter of damaging landslides and flooding ...

Here's the latest forecast for an upcoming winter storm that forecasters hope could finally lift Los Angeles County from the ...

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 ...

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

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

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

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 ...

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