Footage showing entire parking lots under water is emerging from nearby Kansas City, Missouri, where a flash flood emergency warning from the National Weather Service has been issued.
Water levels have been described as going above car doors and emergency crews have been dispatched to assist stranded pedestrians.
Local news stations KSHB and WDAF, as well as other eyewitnesses, shared harrowing scenes from the city of Westport on Twitter.
The rain in Westport was reported to be dying down, but the full flooding damage has yet to be assessed. Some vehicles, certainly, will be a total loss.