The Washington, D.C. metropolitan area is facing another day of hot, humid weather accompanied by a threat of heavy thunderstorms and localized flooding. Meteorologists have forecasted storms moving through the region between 5 p.m. and 10 p.m., with the highest likelihood between 6 p.m. and 9 p.m., particularly within the Beltway area. Rainfall rates could reach 2 to 3 inches per hour, with total localized rainfall of 1 to 3 inches expected during the evening. A flood watch has been issued for D.C. and parts of Maryland starting at 5 p.m. Strong thunderstorms with torrential rains and isolated damaging wind gusts are possible, raising concerns about flash flooding, especially in urban areas. The humid air mass over the region is described as having rainforest-level moisture, contributing to the intensity of the storms. Additional showers and storms are anticipated on Thursday, which may further saturate the ground and increase flood risks heading into Friday.