Residents of the Washington, D.C., metropolitan area were greeted with ominous dark clouds early this morning that opened up with torrential downpours.

Morning commuters were stalled by washed out roads, limited visibility, and flooded Metro stations across the District, northern Virginia, and western Maryland. Many were stranded on street corners and subway stations as their phones erupted with emergency warnings of flash flooding. Soaked Twitter users shared some of the most shocking images of the morning rain’s impact, including a Pentagon parking lot completely underwater and flooding in the basement of the White House.