Texas Governor Greg Abbott declared a state of emergency in 24 Texas counties after a torrential rains dumped a record rainfall, causing major flooding in Texas, May 25, 2015. At least 31 people died in Texas and Oklahoma, from either severe flooding or tornadoes, and at least 10 people remain missing.

In this photo, flood waters from the Brazos River encroach upon a home in the Horseshoe Bend neighborhood in Weatherford, Texas, May 29, 2015.

The Colorado Rivers flows out of its banks in Wharton, Texas, Saturday, May 30, 2015.

The Colorado River in Wharton and the Brazos and San Jacinto rivers near Houston are the main focus of concern as floodwaters moved from North and Central Texas downstream toward the Gulf of Mexico.

Baseball fields at Bear Creek Park are covered by floodwaters Saturday, May 30, 2015, in Houston.

A business is flooded near the Brazos River in Sugar Land, Texas, May 30, 2015.

The Colorado River in Wharton and the Brazos and San Jacinto rivers near Houston are the main focus of concern as floodwaters moved from North and Central Texas downstream toward the Gulf of Mexico.

In this photo, mailboxes stand along a road covered in flood water from the San Jacinto River Thursday at Cooper Park in Kingwood, Texas, May 28, 2015.

People canoe through floodwaters past a stop sign near Bear Creek Park in Houston, Saturday, May 30, 2015.

Floodwaters submerged Texas highways and threatened more homes after another round of heavy rain added to the damage inflicted by storms.

A boat is pulled up the front steps of a home surrounded by floodwaters near the San Jacinto River in Channelview, Texas, Saturday, May 30, 2015.

Sonia Porter (L) smiles at Devin Sadler, 9, as picks up a waterlogged gun during clean-up efforts at John and Ruth Hansen's flood damaged home in San Marcos, Texas, May 26, 2015.

Flood waters cover Memorial Drive along Buffalo Bayou in Houston, May 26, 2015.

More than 11 inches of rain fell in some parts of Houston in just one day, where flooding turned streets into rivers.

Volunteers search for missing bodies along the Blanco River in San Marcos, Texas, May 27, 2015.

Central Texas has been inundated with tornadoes and flash flooding the past several days.

Debris lines the path at Buffalo Bayou park after massive flooding in Houston, May 27, 2015.

Texas and Oklahoma have experienced severe weather, including catastrophic flooding and tornadoes, over the past several days, with more rain expected.

Lorraine Joseph talks about her car still stuck the mud despite several attempts to pull it out in Houston, May 27, 2015. Each attempt failed when the rescuers also got stuck in the mud.

Trees are submerged at Buffalo Bayou park after massive flooding in Houston, May 27, 2015.

Workers tend to equipment used to pump water from Padera Lake as water pours over a temporary dam in Midlothian, Texas, May 27, 2015.

Officials feared that the temporary dam on Padera Lake would fail due to recent heavy rains in the area. Areas throughout Texas have expierenced flash flooding and numerous deaths due to weeks of heavy rainfall.

Cliff Watkins cleans up his parents house following the massive flooding in Houston, May 27, 2015. Watkins, who grew up in the house, said this is the fifth time it has flooded since the 1970's and that one can't even get a home loan for the area without flood insurance.

Members of the Houston Fire Department help residents evacuate through the floodwaters surrounding their homes in Houston, May 26, 2015.

The flooding led to nearly 1,000 calls for help in the fourth-most populous U.S. city according to officials.

A man walks along the Blanco River where sweeping flood waters overturned vehicles and knocked down trees, Tuesday in Wimberley, Texas, May 26, 2015.

Authorities say recovery teams will resume looking for missing people.

Bill Taylor helps clean and remove debris from the interior of a friend's flood damaged home in San Marcos, Texas May 26, 2015.

More than 4,000 properties were severely damaged in Houston alone, according to Mayor Annise Parker.

DerryAnn Krupinsky (3rd L) coordinates where to send crews of volunteers helping with flood relief efforts from a shopping center parking lot in San Marcos, Texas, May 26, 2015.

Marcus Williams, left, and Robert Flores, right, wait on top of their cars surrounded by water on South Gessner near South Bissonnet Tuesday in Houston. May 26, 2015. It took more than 8 hours for them to both to be towed.

Nayeli Cervantes carries her friend's daughter Sophia Aviles through the floodwaters outside their apartment in Houston, May 26, 2015.

Heavy rain overnight caused some major highways to be closed in the Houston area.

Rising floodwaters at Shoal Creek are shown after days of heavy rain in Austin, Texas, May 25, 2015.

Parts of the city are shown inundated after days of heavy rain in Austin, Texas, May 25, 2015.

A man wades through floodwaters in southwest Houston, May 26, 2015.

Torrential rains have killed at least 11 people in Texas and Oklahoma.

Vehicles left stranded on a flooded Interstate 45 in Houston, May 26, 2015. Hundreds of motorists were stranded.

Domingo Molina, right, paddles with his granddaughters Crystal, left, and Alicia, center, down a flooded street in Houston, May 26, 2015.

Debris is shown scattered on land next to Texas Ranch Road 12 in Wimberly, Texas, May 25, 2015.

Texas Governow Greg Abbott toured the damage zone where one person is confirmed dead and at least 12 others missing in flooding along the Rio Blanco, which reports say rose as much as 40 feet in places, caused by more than 10 inches of rain over a four-day period.

Parts of the city are shown inundated after days of heavy rain in Austin, Texas, May 25, 2015.

The sky looks ominous after days of heavy rain in Austin, Texas, May 25, 2015.

Parts of the city are shown inundated after days of heavy rain in Austin, Texas, May 25, 2015.

Rainfall reached up to 11 inches in some parts of the state, national forecasters reported, and the heavy rains quickly pooled over the state's already saturated soil.

Vehicles are left stranded on Texas State Highway 288 in Houston, May 26, 2015.

The flooded Whole Earth Provisions Company on Lamar Street is shown after days of heavy rain in Austin, Texas, May 25, 2015.

Rescue personnel search the floodwaters along Brays Bayou in southwest Houston, May 26, 2015.

Rainfall reached up to 11 inches in some parts of the state, national forecasters reported, and the heavy rains quickly pooled over the state's already saturated soil.

Don Simons (L) and Clint Followel, volunteers from the First Baptist Church in San Marcos, Texas, help clean Toby McLroy's flood damaged home in San Marcos, May 26, 2015.

A vehicle left stranded on a flooded Interstate 45 in Houston, May 26, 2015. Heavy rains throught Texas put the city of Houston under massive amounts of water, closing roadways and trapping residents in their cars and buildings, according to local reports.

Water is seen almost covering a sign along a bike path near Memorial Drive in Houston, May 26, 2015.

Debris is strewn along Ranch Road 12 near the Blanco River in Wimberley, Texas, May 26, 2015.

Central Texas has been hit with severe weather, including catastrophic flooding and tornadoes over the past several days.

Debris is strewn along Ranch Road 12 near the Blanco River in Wimberley, Texas, May 26, 2015.

Flood waters overflow the banks of Brays Bayou and submerge cars at the Meyergrove Apartment complex in Houston, Texas May 26, 2015. Torrential rains have killed at least eight people in Texas and Oklahoma, including two in Houston where flooding turned streets into rivers and led to nearly 1,000 calls for help in the fourth-most populous U.S. city, officials said on Tuesday.

A house near the Blanco River sustained heavy damage in Wimberley, Texas, May 26, 2015.

Vehicles are left stranded on a flooded Interstate 45 in Houston, Texas on May 26, 2015.

Firefighters carried out more than 500 water rescues, mostly stranded motorists.

Heavy overnight rain results in high water and street flooding around the Houston area, May 25, 2015.

Cars stranded on I-45 after heavy overnight rain flooded the interstate, May 25, 2015.

Homes are surrounded by floodwaters near the San Jacinto River in Channelview, Texas, May 30, 2015.