(CNN) The strongest hurricane to hit the United States in more than a decade was downgraded to a tropical storm on Saturday, but Harvey is far from over.
Sunday saw southeast Texas grappling with dangerous flooding as the storm continued to dump water on the state.
Here is what parts of south Texas look like after Harvey battered the area with wind and heavy rains:
Houston
Flooding in Houston prompted more than 1,000 high-water rescues as residents became trapped in their homes or attempted to flee.
A flood guage in an underpass warns of the water's depth on Interstate 10 in Houston on Sunday.
A man walks through deep water on Sunday in Houston.
CNN's Rosa Flores witnessed the rising water levels from Harvey's rain bands.
Buildings in Houston are damaged and trucks are flipped over after Harvey blew through.
Rockport
A damaged home is surrounded by floodwaters on August 26, 2017, in Rockport, Texas.
A small plane sits damaged in a destroyed hangar August 26 after Hurricane Harvey hit Rockport.
Damage and debris strewn along the shoreline Saturday in Rockport, Texas.
Corpus Christi
A car is stranded in floodwaters on August 26 after Hurricane Harvey hit Corpus Christi, Texas.
A house sits exposed on August 26, hours after Hurricane Harvey blew through Corpus Christi, Texas.
A downed traffic signal lies in a street in Corpus Christi, Texas, on August 26.
Port Aransas
A gas station sits mangled in Port Aransas, Texas, on August 26.
A boarded-up Red Roof Inn in Port Aransas shows the damage it suffered on August 26.
Portland
Portland, Texas, sits across the Nueces Bay from Corpus Christi, Texas, which was hit hard by the storm. These images were tweeted by a reporter with CNN affiliate KRIS.
Rafael Lemaitre, a longtime federal government spokesman, posted these pictures of White Oak Bayou in Houston.
Galveston
CNN field producer Jason Morris took this photo of a memorial to the deadly 1900 "Storm of the Century" in Galveston, Texas.
A memorial to the 1900 "Storm of the Century" is lashed by rain on August 26, as bands from Hurricane Harvey swipe Galveston, Texas.
CNN's Paul Murphy and Laura Diaz-Zuniga contributed to this report.