A line of severe thunderstorms, tornadoes and even snow pounded the nation's heartland Thursday, flooding nearly 200 roads in Missouri, closing schools in Arkansas and ripping off the roofs of dozens of houses in Texas.

The band of storms stretched from Colorado and Nebraska, which was expected to get up to 10 inches of snow, to Texas, where high winds and driving rain at one point left a quarter-million people without power.

In Missouri, 3 to 4 inches of rain fell in just a few hours, unleashing flash floods that swamped parts of 180 roads across the state.

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Rescuers using ropes and life jackets pulled nine people from the offices of the Monett Times newspaper after the Kelly Creek burst its banks and surrounded the building. Police said the creek also threatened other businesses in downtown Monett and forced the evacuation of a nearby trailer park with about 10 to 12 homes.

Times publisher Lisa Craft said the afternoon newspaper's presses were high enough not to be threatened. But she said it was unclear when staff could get back in the building.

National Weather Service hydrologist Mark Fuchs said the Meramec, the eastern Missouri river that flooded in March and forced the evacuation of hundreds of residents, could reach what the service considers "major" flood stage in Arnold, about 20 miles south of St. Louis.

In Texas, at least 100 homes and buildings were damaged in West Texas and the Dallas-Fort Worth area. The arm of a gas field worker who was inside a trailer south of Fort Worth when a possible tornado struck was severed up to the elbow.

Straight-line winds carved out a destructive path across the city of Hurst, just east of Fort Worth. Downed trees littered residential neighborhoods, blocking streets, snapping utility poles and snagging power lines. Some large tree trucks had snapped just a foot or two above ground level.

Evelyn Wooten, 69, said she spent early Thursday sitting alone in a front-hall closet wearing a motorcycle helmet and waiting out the storm in the sturdiest room in her house.

"I wasn't going to be hit in the head by a two-by-four," Wooten said, supervising the cleanup of her Hurst home, which was punctured by a falling tree. "I just made me a cozy little den in there."

At one point, Oncor had about 250,000 customers without power in northern Texas. Some could remain without power until Saturday.

In Oklahoma, authorities said two motorists died in separate incidents when their cars skidded off wet roads and collided with trees.

Straight-line winds damaged some 200 homes and businesses in Muldrow, in Sequoyah County in far eastern Oklahoma, and the Red Cross was working to set up a temporary shelter at a local church, authorities said.

In nearby Arkoma, emergency management officals said nearly every home and business sustained broken windows from hail the size of a golf ball or larger.

In northwest Oklahoma City, engineers were assessing the condition of a detention pond dam near Lake Hefner that appeared to be in danger of breaking. Crews worked to install pumps to lower the water level, Laura Story, an assistant city engineer, told The Oklahoman.

In Illinois, the National Weather Service reported several possible tornadoes Thursday evening, including a reported touchdown near Lima in west-central Illinois, but no major damage was reported.

In Arkansas, dozens of roads flooded across the state and schools in Norfork, Marshall and Viola closed due to high water.

A tornado touched down in Grant County, destroying a barn and killing four cows and a donkey.

Flights at Little Rock National Airport were suspended for just under an hour because of a tornado warning. Airport spokesman T.J. Williams said between 300 and 400 people were moved to safe places away from windows.

The heavy rain caused the Mississippi River to swell. The Army Corps of Engineers planned to open a spillway north of New Orleans on Friday for the first time in 11 years to ease the pressure on levees and spare the area from flooding.

The opening of the Bonnet Carre Spillway, about 30 miles above New Orleans, would mark only the ninth time its been opened since its completion in 1931.

Meanwhile, snow was falling across Nebraska, South Dakota and Colorado. Up to 13 inches fell in the Colorado mountains, forcing the postponement of the Atlanta Braves-Colorado Rockies game and closing part of Interstate 70 in eastern Colorado.