When hills are healthy, vegetation can anchor the soil in place. But when that is burned off, hillsides become vulnerable to erosion, and slopes can come crashing down.

An atmospheric river is expected to bring torrential rain to California this week, threatening parts of the state with flash ...

Recently burned areas are likely to experience debris flows — especially during the heaviest periods of rain from Thursday ...

Road crews are continuing to clear a mudslide that blocked access to Topanga Canyon outside LA following the devastating Palisades Fire last month.