As the storm makes landfall again, Harvey was expected to pack winds of up to 45 mph and drench the upper Texas coast and southwestern Louisiana with anywhere from six to 12 inches of rain before heading inland, according to a National Hurricane Center advisory.

“Port Arthur seems to be in the cross-hairs,” Bob Yawger, director of the futures division at Mizuho Securities USA Inc. in New York, said in a telephone interview. While people were optimistic overnight, “that sense of optimism is starting to go down the tubes,” Bloomberg reports.

Evacuees

Houston's George R. Brown Convention Center is hosting more than 10,000 evacuees — double the number of cots available. Those who couldn't get a cot were given pillows and blankets to sleep on the floor, Red Cross spokeswoman Betsy Robertson said.

Houston Mayor Sylvester Turner said city officials were looking for more shelter space. Mayor Turner also indicated he had requested emergency supplies for an additional 10,000 people from the Federal Emergency Management Agency, according to Bloomberg.

The Houston Police Department has rescued more than 4,000 people from floodwaters, chief Art Acevedo said in a televised press conference Tuesday evening.

“At every passing hour, more boats are getting into the water,” Acevedo said at a briefing for reporters. “For all the Monday morning quarterbacking out there, there is not hindsight for an event that's never occurred.”

Take a look at flood scenes from Harvey's aftermath:

Conception Casa, center, and his friend Jose Martinez, right, check on Rhonda Worthington after her car became stuck in rising floodwaters from Tropical Storm Harvey in Houston, Texas, Monday, Aug. 28, 2017. The two men were evacuating their home that had become flooded when they encountered Worthington's car floating off the road. (AP Photo/LM Otero)

Flooded Houston streets and commercial buildings. (Photo: Alexandra Gort/BELFOR Property Restoration)

Highways around downtown Houston are empty as floodwaters from Tropical Storm Harvey overflow from the bayous around the city Tuesday, Aug. 29, 2017, in Houston. (AP Photo/David J. Phillip)

Belfor's Houston office with the Natural Disaster Team Mobile Command Center at the ready. (Photo: Alexandra Gort/BELFOR Property Restoration)

Rescue boats fill a flooded street as flood victims are evacuated as floodwaters from Tropical Storm Harvey rise Monday, Aug. 28, 2017, in Houston. (AP Photo/David J. Phillip)

A Belfor employee navigates the flooded streets of Houston. (Photo: Alexandra Gort/BELFOR Property Restoration)

Volunteer rescue boats make their way into a flooded subdivision to rescue stranded residents as floodwaters from Tropical Storm Harvey rise Monday, Aug. 28, 2017, in Spring, Texas. (AP Photo/David J. Phillip)