The National Weather Service issued a flash flood warning for Riverside County on Monday afternoon, with the alert in effect until 6 p.m. The storm brought heavy rainfall and strong winds across the Coachella Valley, quickly impacting roads and neighborhoods.New video from Palm Desert shows sheets of rain sweeping across the valley floor. Residents are urged to avoid walking or driving through flooded areas, as flash flooding can develop rapidly.NBC Palm Springs reporter Brett Rosen was live in Cathedral City Monday evening, where flooding along Dinah Shore Drive forced vehicles into detours through nearby residential areas. “Many cars are having to turn around or detour,” Rosen reported, noting that water was pooling across the roadway.According to the California Highway Patrol, flooding was also reported on 66th Avenue, Monterey Avenue, and Date Palm Drive, forcing closures and traffic delays.The Palm Springs Aerial Tramway suspended operations for the remainder of the day, with…..