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RALEIGH, N.C. (AP) -- Road crews continue to spread sand, salt and brine as snow falls throughout much of North Carolina.

Only the southeastern corner of the state is expected to escape snow Tuesday night and early Wednesday.

The National Weather Service has issued a winter storm warning for the northern mountains of western North Carolina until 6 a.m. Wednesday. Up to 6 inches of snow is possible.

Parts of the Piedmont could get up to 2 inches of snow. Up to an inch of snow is even expected on the Outer Banks.

The state Department of Transportation is urging caution as temperatures plunge below freezing Tuesday night. In areas where the snow doesn't accumulate on roadways, motorists should still be wary of patches of black ice.

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