U.S. President Donald Trump plans to go to Texas on Tuesday to survey the damage. Thousands of people around the Houston area were rescued from being stranded in their cars and homes in flood waters that were several feet high.
"It is imperative that we do everything possible to protect the lives and safety of people across the state of Texas as we continue to face the aftermath of this storm", Governor Abbott said in a statement obtained by Breitbart Texas.
Trump is promising Texans will "have what you need" and says federal funding will come "fast". The administration of then President George W. Bush faced accusations of launching a slow and inadequate response, dealing a political blow to Bush's presidency.
Abbott said the federal response to the disaster was "A+" so far, but "we'll need to maintain this".
Harvey's centre was about 100 miles (160 km) south of Houston and forecast to arc slowly towards the city through Wednesday, with the worst floods expected later that day and on Thursday.
Texas National Guard units continued to run rescue operations even as night fell on Monday, NBC5's Meredith Land tweeted.
"We are coordinating logistics with state and local officials, and once details are finalised, we will let you know", press secretary Sarah Huckabee Sanders said.
"The magnitude of devastation of this storm has had such a vast impact on areas of Texas and Louisiana", Moran said. That is in addition to upwards of 90 centimeters of rain that has already fallen in some areas, including around the city of Houston.
"I'm sitting here watching the news, checking the Internet and seeing everything that's going on with Hurricane Harvey and the damage it's causing back home, and it's very hard", Watt said in a video he posted Sunday on Twitter.
People evacuate a neighborhood inundated by floodwaters from Tropical Storm Harvey on Monday.
Cars trapped in floodwater near the I-10 freeway leading into Houston after Hurricane Harvey caused heavy flooding in the city, August 27, 2017. The Federal Emergency Management Agency director Brock Long estimated that 30,000 people would eventually be housed temporarily in shelters.
"Under that budget, a program that helps states and communities take long-term measures to reduce losses from disasters, the Pre-Disaster Mitigation Grant Program, has been cut by more than 60 percent".
Houston's police chief warned would-be troublemakers to stay away, saying four people have been arrested for looting and that law enforcement resources were being expanded to keep order. Heavy rainfall caused massive and widespread flooding, the most that's been seen from a tropical storm, and power outages.
Benchmark U.S. gasoline futures were little changed on Tuesday, having surged nearly 7 percent on Monday to reach $1.7799 a gallon.