After a wildfire, the danger continues, especially during torrential rain that can set off fast-moving landslides known as debris flows. By Amy Graff Amy Graff is a San Francisco-based reporter on The ...

While firefighters work to extinguish the Los Angeles-area wildfires, city officials and emergency managers are also worried about what could come next. The potential for rain the weekend of Jan.

Add Yahoo as a preferred source to see more of our stories on Google. Rain on burned hillslopes can trigger dangerous floods and debris flows. Those debris flows can move with the speed of a freight ...

An unusually strong storm system has reached Southern California, raising fears that the rain could unleash a threat that has been lingering in the burn scars of wildfires that ravaged Los Angeles ...

This story is free to read because readers choose to support LAist. If you find value in independent local reporting, make a donation to power our newsroom today. Sterling Klippel is awed by the ...

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 ...

The West has been hammered with several atmospheric rivers in recent weeks, so it’s important to know terms such as debris flow. Debris flows are incredibly dangerous to life and property and occur ...