Southern California is experiencing its first significant rainfall in months, providing much-needed assistance to firefighters battling wildfires. However, this rainfall brings new dangers, including the heightened risk of mudslides and toxic ash runoff in areas recently affected by wildfires, particularly around Los Angeles County. Officials have issued flood watches and advisories as storms are forecasted to hit the region over the weekend, with some areas already experiencing lightning and small hail. In preparation, authorities are deploying measures to manage potential debris flows and protect vulnerable neighborhoods. The combination of beneficial rain for firefighting efforts and the threats of floods and landslides has sparked urgent warnings from emergency workers as conditions evolve.