Mammoth Mountain officials said the slide occurred during avalanche mitigation work following a significant Sierra Nevada ...

A young woman suffered only moderate injuries after a Northern California high country crash during Thursday's storm, authorities say.

A significant winter storm is set to impact California with rain and snow, but flash floods and mudslides may follow.

Many atmospheric river events are weak. But the powerful ones can transport extraordinary amounts of moisture. Studies have ...

The weather phenomena are common for California winters, but they could cause dangerous debris flows or mudslides in recently ...

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

It's a type of atmospheric river that forms a long ... By early Tuesday, snow was expected in the Sierra Nevada at elevations above 6,000 feet. Travel in the Sierra Nevada probably will be ...

An atmospheric river is slamming portions of California ... and the foothill of the Sierra Nevada. The weather service said this moisture will result in more heavy rain for the region, with ...

Call it an atmospheric river, a Pineapple Express ... hits Northern California and northwest Nevada. Meanwhile, high wind warnings remain in effect for Reno-Sparks on Monday.

A winter storm could bring up to 3 feet of snow to the Lake Tahoe area starting Monday as an atmospheric river hits Northern California and northwest Nevada. Meanwhile, high wind warnings remain in ...