A snow plow moves on a snowy Durham, N.C., street on Sunday. Weather Prediction Center forecaster David Roth told NPR this could be a "historic storm" for southwest Virginia and western North Carolina.
A fan dressed as Santa gestures in the snow during a game between the Chicago Bears and the Cleveland Browns in Chicago on Sunday. The storm system that brought Christmas Eve snow to Chicago is now passing over the Northeast.
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A woman walks in whiteout conditions in Boston on Thursday. Sunday's forecast promises similarly daunting conditions, as a winter storm bears down on the Northeast.
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A woman pushes a stroller over a snow-covered road in Wilmington, Del., Monday. Many streets there and in other cities are still covered with snow from this weekend's blizzard.
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Ontario Provincial Police snapped this photo of a snow mound with a car inside. They stopped a man in Brussels, Ontario, from driving with only the driver's side of the windshield cleared.
Sgt. Russell Nesbitt/AP