What are the severe weather risks facing California and how do they particularly threaten areas previously affected by wildfires?

California is currently under severe weather alerts due to incoming heavy rain that poses significant risks to millions of residents. The most concerning threat is in areas previously impacted by wildfires, where the combination of heavy rainfall and burned terrain creates dangerous conditions for mudslides and flooding. Areas affected by wildfires are particularly vulnerable because the fires destroy vegetation that normally helps stabilize soil and absorb water. When heavy rain hits these burn-scarred areas, the water runs off quickly rather than being absorbed, leading to increased risk of mudslides and flash flooding that can be life-threatening to nearby communities. This weather event requires residents in affected areas to stay alert, follow safety measures, and be prepared for rapidly changing conditions that could impact their safety and property.