AccuWeather meteorologists warn a lake-effect setup will bring over a foot of snow in several states and dangerous snow squalls will prowl some well-traveled highways as far to the southeast as the central Appalachians into midweek. The same storm that produced feet of snow in the Rockies over Thanksgiving pushed into and across the Great Lakes on Sunday, bringing a round of snow starting what will be several days of wintry weather. Behind this swath of snow, a fresh batch of cold air is expecte