"The video above, filmed by Houston resident Exavier Blanchard, shows how quickly water levels rose outside his apartment complex in the Greenspoint area of Houston. The time-lapse footage shows waters rising well above some cars and breaching part of the building’s first floor.
Blanchard began filming at 9:30 p.m. Saturday, after Hurricane Harvey, a Category 4 storm, ravaged the Texas Gulf Coast. He set up his Nest home security camera in his second-floor apartment before police went door-to-door telling residents of the complex to evacuate.
By the time Blanchard’s video ends 15 hours later, several cars are fully or partially submerged in the floodwaters..."