A woman gets help from a Houston firefighter after leaving her car on a flooded 288 on Wednesday, Jan. 18, 2017, in Houston. Flash flood warnings are in effect for the Houston region, where torrential rains prompted officials to close some schools and delay opening many others on Wednesday. Public transportation has been delayed or suspended in the area. (Elizabeth Conley/Houston Chronicle via AP)
A pedestrian is covered with a plastic bag while walking along Greens Road on Wednesday, Jan. 18, 2017, in Houston. Flash flood warnings are in effect for the Houston region, where torrential rains prompted officials to close some schools and delay opening many others on Wednesday. Public transportation has been delayed or suspended in the area.
(Brett Coomer /Houston Chronicle via AP)
People wait for the water to recede on northbound 288 after getting stuck flooding from the bayou after heavy nightfall rain on Wednesday, Jan. 18, 2017, in Houston. Flash flood warnings are in effect for the Houston region, where torrential rains prompted officials to close some schools and delay opening many others on Wednesday. Public transportation has been delayed or suspended in the area. (Elizabeth Conley/Houston Chronicle via AP)
Saul Robles stands in his back yard in high water from heavy overnight rains on Wednesday, Jan. 18, 2017, in Houston. Flash flood warnings are in effect for the Houston region, where torrential rains prompted officials to close some schools and delay opening many others on Wednesday. Public transportation has been delayed or suspended in the area. (Brett Coomer /Houston Chronicle via AP)
A man walks from his flooded vehicle after getting stranded Wednesday, Jan. 18, 2017. Flash flood warnings are in effect for the Houston region, where torrential rains prompted officials to close some schools and delay opening many others on Wednesday. Public transportation has been delayed or suspended in the area. (Melissa Phillip/Houston Chronicle via AP)
Syed Ali waits with his stranded car after it flooded on Wednesday, Jan. 18, 2017. Flash flood warnings are in effect for the Houston region, where torrential rains prompted officials to close some schools and delay opening many others on Wednesday. Public transportation has been delayed or suspended in the area. (Melissa Phillip/Houston Chronicle via AP)
A woman is helped out of a flooded 288 on Wednesday, Jan. 18, 2017, in Houston. Flash flood warnings are in effect for the Houston region, where torrential rains prompted officials to close some schools and delay opening many others on Wednesday. Public transportation has been delayed or suspended in the area.
(Elizabeth Conley/Houston Chronicle via AP)
A man drives a car through the flooded street along West Bellfort following thunderstroms, Wednesday, Feb. 18, 2017, in Houston. (Melissa Phillip/Houston Chronicle via AP)
People wait for the water to recede on southbound 288 near Calumet, Texas after getting stuck flooding from the bayou after heavy nightfall rain on Wednesday, Jan. 18, 2017, in Houston. Flash flood warnings are in effect for the Houston region, where torrential rains prompted officials to close some schools and delay opening many others on Wednesday. Public transportation has been delayed or suspended in the area. (Elizabeth Conley/Houston Chronicle via AP)