As the Los Angeles area begins cleaning up from devastating wildfires, city officials and emergency managers are worried about what could come next. The National Weather Service issued a flash flood ...

Public works crews in Los Angeles County have been clearing debris basins and storm drains, and handing out sandbags to residents ahead of the most intense periods of rain from a powerful mid-February ...

The Los Angeles wildfires were still burning when scientists started scouting the freshly charred burn scars to search for signs of another danger that’s yet to come — roaring torrents of rock and mud ...

More than 7,500 feet of concrete barriers and more than 6,500 sandbags have been deployed to areas burned in the Palisades Fire in case of debris flows, Los Angeles Mayor Karen Bass announced Tuesday.

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Jen Pierce receives funding from the National Science Foundation and is the chair of the Quaternary Geology and Geomorphology division of the Geological Society of America. As the Los Angeles area ...

A powerful storm was hitting Southern California Thursday. The second of two atmospheric-river-fueled storms to hit Southern California this week is moving faster than originally anticipated but is ...

Sterling Klippel is awed by the beauty of nature but spends his working days resisting its power. Casting worried glances at a gray sky above the Sierra Madre Dam in the foothills of the San Gabriel ...

Stay up-to-date with free briefings on topics that matter to all Californians. Subscribe to CalMatters today for nonprofit news in your inbox. Sterling Klippel is awed by the beauty of nature but ...