HOUSTON, TX - AUGUST 27: People push a truck down a flooded street after the area was inundated with flooding from Hurricane Harvey on August 27, 2017 in Houston, Texas. Harvey, which made landfall north of Corpus Christi late Friday evening, is expected to dump upwards to 40 inches of rain in Texas over the next couple of days. (Photo by Joe Raedle/Getty Images)
Epic Flooding Inundates Houston After Hurricane Harvey
Volunteers and officers from the neighborhood security patrol help to rescue residents in the upscale River Oaks neighborhood after it was inundated with flooding from Hurricane Harvey on August 27, 2017 in Houston, Texas. Harvey, which made landfall north of Corpus Christi late Friday evening, is expected to dump upwards to 40 inches of rain in Texas over the next couple of days. (Photo by Scott Olson/Getty Images)
Epic Flooding Inundates Houston After Hurricane Harvey
HOUSTON, TX - AUGUST 27: Andrew White (L) helps a neighbor down a street after rescuing her from her home in his boat in the upscale River Oaks neighborhood after it was inundated with flooding from Hurricane Harvey on August 27, 2017 in Houston, Texas. Harvey, which made landfall north of Corpus Christi late Friday evening, is expected to dump upwards to 40 inches of rain in Texas over the next couple of days. (Photo by Scott Olson/Getty Images)
Epic Flooding Inundates Houston After Hurricane Harvey
HOUSTON, TX - AUGUST 27: Volunteers and officers from the neighborhood security patrol help to rescue residents in the upscale River Oaks neighborhood after it was inundated with flooding from Hurricane Harvey on August 27, 2017 in Houston, Texas. Harvey, which made landfall north of Corpus Christi late Friday evening, is expected to dump upwards to 40 inches of rain in Texas over the next couple of days. (Photo by Scott Olson/Getty Images)
Epic Flooding Inundates Houston After Hurricane Harvey
Volunteers and officers from the neighborhood security patrol help to rescue residents in the upscale River Oaks neighborhood after it was inundated with flooding from Hurricane Harvey on August 27, 2017 in Houston, Texas. Harvey, which made landfall north of Corpus Christi late Friday evening, is expected to dump upwards to 40 inches of rain in Texas over the next couple of days. (credit: Scott Olson/Getty Images)
Epic Flooding Inundates Houston After Hurricane Harvey
HOUSTON, TX - AUGUST 27: Volunteers and officers from the neighborhood security patrol help to rescue residents in the upscale River Oaks neighborhood after it was inundated with flooding from Hurricane Harvey on August 27, 2017 in Houston, Texas. Harvey, which made landfall north of Corpus Christi late Friday evening, is expected to dump upwards to 40 inches of rain in Texas over the next couple of days. (Photo by Scott Olson/Getty Images)
Epic Flooding Inundates Houston After Hurricane Harvey
HOUSTON, TX - AUGUST 27: Volunteers and officers from the neighborhood security patrol help to rescue residents in the upscale River Oaks neighborhood after it was inundated with flooding from Hurricane Harvey on August 27, 2017 in Houston, Texas. Harvey, which made landfall north of Corpus Christi late Friday evening, is expected to dump upwards to 40 inches of rain in Texas over the next couple of days. (Photo by Scott Olson/Getty Images)
Epic Flooding Inundates Houston After Hurricane Harvey
HOUSTON, TX - AUGUST 27: Volunteers and officers from the neighborhood security patrol help to rescue residents and their dogs in the upscale River Oaks neighborhood after it was inundated with flooding from Hurricane Harvey on August 27, 2017 in Houston, Texas. Harvey, which made landfall north of Corpus Christi late Friday evening, is expected to dump upwards to 40 inches of rain in Texas over the next couple of days. (Photo by Scott Olson/Getty Images)
Epic Flooding Inundates Houston After Hurricane Harvey
HOUSTON, TX - AUGUST 27: Volunteers and officers from the neighborhood security patrol help to rescue residents in the upscale River Oaks neighborhood after it was inundated with flooding from Hurricane Harvey on August 27, 2017 in Houston, Texas. Harvey, which made landfall north of Corpus Christi late Friday evening, is expected to dump upwards to 40 inches of rain in Texas over the next couple of days. (Photo by Scott Olson/Getty Images)
Epic Flooding Inundates Houston After Hurricane Harvey
Volunteers and officers from the neighborhood security patrol help to rescue residents in the upscale River Oaks neighborhood after it was inundated with flooding from Hurricane Harvey on August 27, 2017 in Houston, Texas. Harvey, which made landfall north of Corpus Christi late Friday evening, is expected to dump upwards to 40 inches of rain in Texas over the next couple of days. (Photo by Scott Olson/Getty Images)
Epic Flooding Inundates Houston After Hurricane Harvey
HOUSTON, TX - AUGUST 27: Andrew White (L) helps a neighbor down a street after rescuing her from her home in his boat in the upscale River Oaks neighborhood after it was inundated with flooding from Hurricane Harvey on August 27, 2017 in Houston, Texas. Harvey, which made landfall north of Corpus Christi late Friday evening, is expected to dump upwards to 40 inches of rain in Texas over the next couple of days. (Photo by Scott Olson/Getty Images)