After a wildfire, the danger continues, especially during torrential rain that can set off fast-moving landslides known as ...

Storms now pounding Southern California are raising the specter of more danger for residents—debris flows in areas already ...

Rain on burned hillslopes can trigger dangerous floods and debris flows. Those debris flows can move with the speed of a ...

For the second time this year, Southern Californians are evacuating their homes as heavy rain threatens new destruction in ...

Southern California faces a risk of damaging debris flows this week, as a potentially strong atmospheric river is set to ...