Ice storm freezes Texas, South

A tree felled by ice rests near a house Friday, Dec. 6, 2013, in Richardson, Texas.

Millions of people - from Texas to Ohio to Tennessee - hunkered down for icy conditions expected to last through the weekend as the cold snap that covered much of the U.S. knocked out power and made roads treacherous Saturday.

About 117,000 customers in North Texas were without power Saturday morning after power lines were downed by falling trees. Ice forced the sporadic closures of freeways and interchanges in the Dallas-Fort Worth area, and more than than 350 departing flights from DFW were cancelled Saturday morning, stranding thousands of passengers.

Forecasters say subfreezing temperatures will continue through the weekend.

Dallas

Traffic slowly moves along an ice covered highway Friday, Dec. 6, 2013, in Dallas.

Jonesboro, Texas

Stan Wojciechowski of Jonesboro scrapes ice from his windshield Friday in the parking lot of Kroger's in Jonesboro. "I'm from Michigan, so to me this isn't so bad," he said.

Paris, Texas

Icicles cover a car in a parking lot along Loop 286 in Paris, Texas, Friday, Dec. 6, 2013.

Dallas

Icicles form on a power line on December 6, 2013 in Dallas, Texas. The ice storm that has hit North Texas has left over 250,000 residents and businesses without power.

Paris, Texas

A Paris firefighter and a homeowner work together to clear 16th Southeast Street of debris from an ice storm in Paris, Texas, Friday, Dec. 6, 2013.

Richardson, Texas

City of Richardson employees Dickie Cooper, left, and Nate Griffith use chainsaws and other light equipment to cut up a fallen tree blocking a neighborhood intersection, Friday, Dec. 6, 2013, in Richardson, Texas.

Richardson, Texas

Hugo Pedroza, a light equipment operator with the City of Richardson, helps clear away limbs from an ice-covered tree that fell across a neighborhood intersection, Friday, Dec. 6, 2013, in Richardson, Texas.

Dallas

Icicles form on a barricade in front of the Dallas skyline on December 6, 2013.

Dallas

Traffic slowly moves along an ice-covered highway Friday, Dec. 6, 2013, in Dallas.

Plano, Texas

A fallen tree limb blocks a residential street on December 6, 2013 in Plano, Texas.

Plano, Texas

Six-year-old Enari Hernandez (left) and her cousin Maritza Jimenez , also six, play in front of a damaged tree in their neighbor's yard on December 6, 2013 in Plano, Texas.

Plano, Texas

Fairview Farms employee Julio Rodriguez, 28, of Plano, Texas, uses a chain saw to remove downed trees and limbs from residential streets near the farm on December 6, 2013 in Plano, Texas.

Richardson, Texas

City of Richardson employees Nate Griffith, left, Dickie Cooper, center, and Ronnie Abron, right, work on clearing a ice-covered tree from a neighborhood intersection, Friday, Dec. 6, 2013, in Richardson, Texas.

Richardson, Texas

Kenny Burger, left, helps his father, Harold Burger, saw ice-covered tree limbs knocked down by a winter storm Friday morning, Dec. 6, 2013, in Richardson, Texas.

Dallas

Sleet falls and ice covers the street early Friday morning, Dec. 6, 2013, in Dallas.

Memphis, Tenn.

AP Photo/The Commercial Appeal, Mark Weber

Ice forms on tree leaves during freezing rain Dec. 6, 2013, in Memphis, Tenn. On Friday the National Weather Service issued winter storm warnings and watches and an ice storm warning for northern Mississippi and West Tennessee.

Memphis, Tenn.

As freezing rain falls, Tyshun Lindsey, 15, dons a Santa hat and beard and rings a bell to get drivers' attention while selling bags of pecans Friday, Dec. 6, 2013, in Memphis, Tenn.

Memphis, Tenn.

A worker from Wilson Air Center de-ices a Southwest Airlines plane before it lifts off towards Orlando, Fla., on Friday, Dec. 6, 2013, at Memphis International Airport.

Millington, Tenn.

AP Photo/The Commercial Appeal, Chris Desmond

Memphis Gas Light and Water repairman Jeremie McAlpin prepares to change a transformer in Millington, Tenn., Friday, Dec. 6, 2013.

Gamaliel, Ark.

AP Photo/The Baxter Bulletin, Kevin Pieper

Workers at 101 Boat Dock shovel snow from the roof of a dock Friday, Dec. 6, 2013, in Gamaliel, Ark. On Friday the National Weather Service issued winter storm and ice warnings for parts of Texas, Oklahoma, Arkansas, Mississippi, Missouri, Illinois, Indiana and Tennessee.

Mountain Home, Ark.

Ice hangs from a statue in Mountain Home, Ark., on Thursday, Dec. 5, 2013.