Houston Rescue Effort

Rescued from flooding, people with their pets prepare to board a school bus bound for the M.O. Campbell Educational Center in north Houston, Texas, Aug. 27, 2017. The multipurpose facility is serving as a Red Cross shelter. (C. Mendoza/VOA)

Lakwesha Davis and sons Terminus Brothers Jr., 14, and Trestian Woodard, 7, wait for a friend after being rescued from their flooded Greenbriar Colony neighborhood in Houston, Texas, Aug. 27, 2107. (C. Mendoza/VOA)

Floodwaters threaten to swallow a vehicle stranded on Interstate 45-North Freeway in Houston, Texas, Aug. 27, 2017. (C. Mendoza/VOA).

The Guel sisters – Sara, 7, at left, and Celeste, 8 – wait near the military transport truck that brought them from their flooded Greenbriar Colony neighborhood to a gas station transfer point in north Houston, Texas, Aug. 27, 2017. Next stop: a Red Cross

Trestian Woodard, 7, finds welcoming arms at a gas station doubling as a rescue transfer point in north Houston, Texas, Aug. 27, 2017. National Guard and Aldine Fire & Rescue members collected people from the Greenbriar Colony neighborhood. (C. Mendoza/VO

Rescuers assist flood victims out of a military transport vehicle at a gas station doubling as a transfer point in north Houston, Texas, Aug. 27, 2017. Retrieved from the Greenbriar Colony neighborhood, they’ll go on to a Red Cross shelter. (C. Mendoza/VO