Southern California is bracing for a significant storm bringing heavy rainfall, which is both a relief for firefighters battling wildfires and a concern for potential flooding and mudslides in recently scorched areas. Flash flood warnings have been issued for parts of Malibu and Palisades as rain starts to intensify. Officials are urging residents near wildfire burn scars to prepare for the worst-case scenarios, including debris flows and toxic ash runoff. With road closures already in effect due to mudflows, the situation continues to evolve as the worst of the rainstorm is expected to hit in the coming days. Emergency measures are being taken to protect watersheds and beaches from hazardous runoff, underscoring the dual nature of the rain - offering help in combating fires while also creating new risks.