Atlanta is preparing for a weekend of significant rainfall and thunderstorms, with potential accumulations reaching up to 3 inches in some areas. The National Weather Service has issued a flood watch for the Atlanta metropolitan area, effective from Friday evening through Sunday afternoon, due to a low-pressure system intensifying as it moves eastward. The combination of saturated ground from previous rainfall and the anticipated heavy downpours increases the risk of flash flooding, particularly for residents near creeks and streams. Thunderstorms may bring damaging winds, with gusts potentially exceeding 40 mph, leading to downed trees, power lines, and subsequent power outages. Lightning strikes also pose a significant risk, urging residents to seek indoor shelter during thunderstorms.