The National Weather Service has issued a flash flood watch for Northern California's Park Fire burn scar area, effective from 11 a.m. Friday to 11 a.m. Saturday, due to anticipated rain and thunderstorms. With nearly 430,000 acres burned and the fire 57% contained, areas like Big Chico Creek and Mud Creek are particularly at risk for debris flows and mudslides. Residents are advised to remain vigilant and be prepared to evacuate if necessary, despite all previous evacuation orders being lifted. Local officials emphasize that the risk of flooding is heightened due to damaged drainage systems and loss of vegetation from the fire. The Park Fire, now California's fourth-largest wildfire, has led to one arrest for suspected arson. As the weather shifts, temperatures are expected to rise again early next week, introducing further risks.