An atmospheric river is expected to hit California later this week, bringing heavy rain and wind to much of the state.

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

Southern California's strongest atmospheric river storm of the winter is arriving Thursday, and it's expected to bring significant flooding to roads and a high risk of landslides. Here's what you need ...

A new rain storm is bearing down on California, including fire-ravaged Los Angeles, where residents are bracing for the possibility of mudslides and landslides.

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

How is climate change affecting polar regions? Climate change is amplified in the polar regions. The northern and southern reaches of the planet are warming faster than any area on Earth, with the ...