State Department of Emergency Management spokeswoman Laura Southard said the storm had the potential to be a "historic ice event."
"This forecast is very concerning to us," Southard said. "I've worked multiple disasters, but I've never worked an ice storm with a forecast like this."
The weather forced the cancellation of Sunday's Dallas Marathon, which was expected to draw 25,000 runners, some of whom had trained for months.
Meanwhile, around 7 inches of snow fell in northeast Arkansas and the Missouri boot heel, according to the National Weather Service in Memphis. Ice accumulated on trees and power lines in Memphis and the rest of West Tennessee after layers of sleet fell throughout the region Friday. The weather service says 8 to 9 inches fell in parts of southern Indiana.
The storm dumped a foot of snow and more in some areas of Illinois, with police scrambling to respond to dozens of accidents and forced scores of schools to remain closed.
Western and central Kentucky were under winter storm warnings slated to last through early Saturday. With warmer temperatures expected in eastern Kentucky, forecasters issued a flood watch into Saturday morning.
Looking ahead, the National Weather Service says a wind chill advisory is in effect for parts of northeast Arkansas and the Missouri boot heel. Forecasters say wind chill readings between zero and minus-5 degrees may occur.
Delivery delays may occur in areas where the storm caused unsafe driving and flying conditions, said Scott Fielder, a spokesman for FedEx, which has its worldwide hub in Memphis.
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