The same storm that will soak areas from the Appalachians to the Atlantic coast will have snappy cold on the back side that will not only have tens of millions reaching for midwinter coats but will also bury some Great Lakes towns knee-deep in the snow all over again,

A potent blast of Arctic air sweeping across the eastern United States is set to unleash heavy lake-effect snow across the Great Lakes, with some areas bracing for accumulations of over two feet by Friday morning.