Plains and South brace for another winter storm



-- Barely a week after a record-setting winter storm roared across the heartland, Mother Nature was ready to dish out more Tuesday, according to the National Weather Service.

A powerful weather system poised over the Rockies is forecast to dump several feet of snow in the Mountain West and up to 8 inches in Oklahoma and Arkansas by Wednesday morning, the forecast said.

Much of Oklahoma is under a winter storm warning, but snow and sleet is predicted as far south as central Texas, with 2 to 4 inches expected to coat the Dallas-Fort Worth area, the weather service said.

Later in the week, the system is expected to bring rain and snow to many areas of the Deep South before delivering a wintry mix along portions of the East Coast by Thursday.

Bitterly cold temperatures will lock the center of the country in the deep freeze as the system moves east.

"Maximum temperature departures are expected to run 30 to 40 degrees below average for the central U.S. (Tuesday) with the same departures sinking south into Oklahoma and north Texas on Wednesday," the weather service said.

A historic storm left its mark on at least 30 states last week, dumping about 2 feet of snow on the Chicago area and prompting Oklahoma's governor to declare a state of emergency.

Another winter system at the end of the week left central and southern Texas a mess.

Ice caused 800 crashes across the Houston metropolitan area, and many freeways were closed because they were too dangerous to navigate, CNN affiliate KPRC reported.

Hundreds of flights were canceled as the winter weather threatened the plans of Super Bowl enthusiasts headed for the game in Arlington, Texas.