As rain intensifies, so does the risk of debris flows in Altadena and beyond
Debris flow risk combines likelihood and volume of flow during a peak 15-minute rainfall intensity of a given amount of rain per hour.
Peak 15-minute rainfall intensity (in inches per hour)
Debris flow risk
Low
Moderate
High
Eaton Fire Perimeter
- Source: USGS Post-Fire Debris Flow Hazard Assessment Viewer
- Credits: Natasha Uzcátegui-Liggett and John Osborn D'Agostino, CalMatters