A man crosses Main Street in downtown during record-breaking temperatures in Houston, U.S., February 17, 2021.

A person sleeps on a chair while taking a shelter at Gallery Furniture store which opened its door and transformed into a warming station after winter weather caused electricity blackouts in Houston, Texas, U.S. February 17, 2021.

Danny Westerman, 72, sits on his electric scooter while taking a shelter at Gallery Furniture store which opened its door and transformed into a warming station after winter weather caused electricity blackouts in Houston, Texas, U.S. February 17, 2021.

Residents line up in their vehicles to enter a warming center and shelter after record-breaking winter temperatures, as local media reports most residents are without electricity, in Galveston, Texas, U.S., February 17, 2021.

People take shelter at Gallery Furniture store which opened its door and transformed into a warming station after winter weather caused electricity blackouts in Houston, Texas, U.S. February 17, 2021.

A front loader works to clear snow off the streets during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

Alyssa Kocon, left, and Sam Sharp, right, sled down a hill using pool floats during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

Brant Stubblefield (R) prays for a homeless man named QT during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

Motorists cross the Second Street bridge during a winter storm in Louisville, Kentucky, U.S., February 15, 2021.

Volunteer Salvador Cariaga checks on a man suffering from homelessness who has been sleeping on the ground under blankets during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

People work to free a car stuck in the snow during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

Brant Stubblefield hands a bag of supplies to a homeless man during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

Snow blows around grass in Scissortail Park during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

Sommer Morgan sleds down a hill during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

A state highway truck spreads salt on Second Street during a winter storm in Louisville, Kentucky, U.S., February 15, 2021.

Robert Salazar wears makeshift snow boots as the state of Texas experiences widespread power outages and record-breaking temperatures in Houston, U.S., February 16, 2021.

Keith Van Winkle, a Texas Tech University student, snowboards down a hill at the university campus in Lubbock, Texas, U.S. February 16, 2021.

People work to free a stuck motorist during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

A sign warns of ice and snow at the interchange of Interstates 71, 64, and 65, as snow begins to fall in Louisville, Kentucky, U.S., February 15, 2021.

Louisville, Kentucky is seen in the distance as ice coats a sidewalk along the Ohio River, during a winter storm in Clarksville, Indiana, U.S., February 15, 2021.

The Oklahoma City skyline is seen over a snow covered Scissortail Park during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

Snow falls at the United Parcel Service (UPS) WorldPort hub located at Louisville Muhammad Ali International Airport in Louisville, Kentucky, U.S., February 15, 2021. For the first time in history, UPS has closed the WorldPort hub, suspending all sorting and flight operations because of weather.

Snow blankets Cy-Champ Park as the state of Texas experiences widespread power outages and record-breaking temperatures in Houston, U.S., February 16, 2021.

Quincy Perkins, right, helps a woman free her stuck vehicle during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

A woman walks down a snow covered street during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

Plows clear snow and ice from Interstate 64 during a winter storm in Louisville, Kentucky, U.S., February 15, 2021.

James Derrick, who is suffering from homelessness, peeks out of his tent during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

A motorist drives past a rock wall covered with ice on Interstate 71 as snow begins to fall in Louisville, Kentucky, U.S., February 15, 2021.

Picnic tables are seen in the snow at Scissortail Park in during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

Volunteers help distribute water to local residents at a warming center and shelter after record-breaking winter temperatures, as local media reports most residents are without electricity, in Galveston, Texas, U.S., February 17, 2021.

Alvin Williams, 66, checks on his smartphone while taking a shelter at Gallery Furniture store which opened its door and transformed into a warming station after winter weather caused electricity blackouts in Houston, Texas, U.S. February 17, 2021.

Fernando Rodriguez scrapes ice from his car as the state of Texas experiences widespread power outages and record-breaking temperatures in Houston, U.S., February 16, 2021.

Corbin Antu, a Texas Tech University student, poses for a photo after being pulled by a pickup on his snowboard down streets in Lubbock, Texas, U.S., February 16, 2021.

Tiffany Woodley, front, rests on a bed while taking a shelter at Gallery Furniture store which opened its door and transformed into a warming station after winter weather caused electricity blackouts in Houston, Texas, U.S. February 17, 2021.

Tim Peek, left, and David Harbisen, right, work to dig out a stuck vehicle during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.

Julio and Josmery Campo unload plywood for their fireplaces as the state of Texas experiences widespread power outages and record-breaking temperatures in Houston, U.S., February 16, 2021. The couple has been without power for the majority of the last 36 hours.

Vehicles drive down a snow covered I-40 during record breaking cold weather in Oklahoma City, Oklahoma, U.S., February 15, 2021.