With thousands of people displaced, health workers are trying to address the immediate medical needs of evacuees as well as mental health issues made worse by the disaster.
Shelters around Houston are struggling to keep up with the thousands of people forced from their homes. The downtown convention center is filled beyond capacity, and people are still arriving.
John Livious and his family settled in Houston after being evacuated from New Orleans during Hurricane Katrina. For him, watching the flooding from Harvey is "unbearable, because it's like déjà vu."
On Tuesday morning, a rain gauge southeast of Houston reported 49.32 inches — breaking a national record that was set by cyclone Amelia in 1978, the National Weather Service says.
The president heads to Texas on Tuesday to survey the damage from Hurricane Harvey. It will be a test of his young presidency to show empathy and competence in responding to a historic storm.
"We did all that we could, but it would never have been enough," Kristin Massey wrote on Tuesday. She added, "I encourage everyone to continue to give manpower wherever they can."
Houston remains in rescue mode as Tropical Storm Harvey continues to dump water on the flooded region. About 5,500 people have been brought to emergency shelters in the city, the mayor said Monday.
Hurricane Harvey has inflicted much human misery since Friday, and now its aftermath is causing economic harm. Experts say the flooding may end up damaging oil refineries and boosting gas prices.