CNN
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As the Midwest and Northeast dig out from back-to-back winter storms, new systems are building and are expected to dump more snow from the middle of the country to the East Coast this week.
Plenty of cold air remains in place to the north, helping to set the stage for a wide band of wintry mix and snow, according to the Weather Prediction Center.
The first storm will form in the Central US Monday night and ramp up as it heads east, bringing snow and freezing rain to parts of the Appalachian Mountains, mid-Atlantic and southern portions of the Northeast Tuesday through Wednesday.
The worst conditions are expected across the Appalachian…
