CNN’s Julia Vargas Jones shows the aftermath of a potent storm that plunged parts of California underwater.

Mudslides are dangerous torrents that are usually referred to by geologists and first responders as debris flows.

Snow is made up of trillions of tiny ice crystals to make snowflakes, with not one alike. Here's how they form.

Atmospheric rivers are long and relatively narrow bands of water vapor that form over an ocean. Some get the nickname ...

Workers secure a net to prevent mudslides over the burned side of a mansion in the Pacific Palisades neighborhood of Los Angeles, Friday, Jan. 24, 2025. (AP Photo/Damian Dovarganes) Workers secure ...

Southern California finally received some much-needed rain this week after weeks of historically dry, windy weather fueled this month's deadly wildfire outbreak — but with it came the threat of ...

mudslides and toxic ash runoff in burn areas. According to the National Weather Service, more than an inch of rain fell in parts of Los Angeles over a three-day span, triggering flash flood ...

California Gov. Gavin Newsom signed laws Friday setting aside $50 million to help the state protect its policies from ...

KEVIN KNODELL / KKNODELL @STARADVERTISER.COM The road through Kolekole Pass is a narrow, winding one-way road up the rugged Waianae Mountains that has been plagued and damaged by rock falls and ...

The atmospheric river storm hitting Northern California is set to bring heavy rain to the San Francisco Bay Area on Tuesday, potentially triggering flooding. In the mountains, the National Weather ...