Ice storm making travel difficult in several states

Several U.S. states could experience an ice storm large enough to make driving on untreated surfaces "extremely dangerous."

A winter storm is cutting across the Mississippi River Valley, with rain falling on frozen ground in several states. 

The National Weather Service issued ice storm warnings for parts of Oklahoma, Arkansas and Missouri. Some areas of Oklahoma are also under a winter storm warning. The National Weather Service warned that some areas could get up to two-fifths of an inch of ice accumulation by Monday evening. 

The storm is expected to continue moving northeast. A large swath of the Midwest, including most of Illinois, Indiana, Ohio and Michigan, is under a winter weather advisory. Those states are also expecting small amounts of ice accumulation late Monday and early Tuesday. 

The Oklahoma Department of Transportation offered advice for its residents ahead of the storm. 

"Freezing rain may not sound as dangerous as a foot of snow, but we are here to tell you it is! Freezing rain can create a slippery layer of ice on the road which can be especially dangerous when speeding and braking. Buckle up, slow down and leave plenty of room," the department said.