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 ...

Researchers at the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL) have, for the first time, been able to record a debris flow over a distance of two kilometers at the Illgraben ...

Storms now pounding Southern California are raising the specter of more danger for residents — debris flows in areas already reeling from devastating fires. Debris flows are like mudslides, except ...

An atmospheric river forecasters say is likely to be the strongest in nearly a year is set to unleash rain across Southern California this week, heightening concerns of damaging debris flows in areas ...

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 ...