Snow is beginning to taper off in some areas of North Carolina, but there's concern about frozen precipitation causing problems later on.
A National Weather Service meteorologist says the main concern is that the freezing rain will last longer and be heavier than anticipated.
Slick roads have already caused problems in several portions of the state.
Authorities say a tractor-trailer jackknifed on northbound Interstate 77 near Huntersville. Charlotte-Mecklenburg police had responded to more than a dozen accidents.
In Cumberland County, the state Highway Patrol says a school bus without any students slid into a truck. The patrol also says a tractor-trailer overturned on Interstate 40 in Haywood County as snow covered roadways west of Asheville. No injuries were reported.
Duke Energy was reporting more than two-thousand power outages in Catawba and Lincoln counties.
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