Climatologically, it is not supposed to snow in South Florida. The laid-back tropics are a region constantly gaining energy from the sun, and with Florida's temperatures moderated by warm water on three sides, snow is unusual even in the northern reaches of the state.

As far as the amount of snow that falls in the eastern parts of Georgia, the Carolinas, Virginia, Maryland and Delaware, as well as farther up along the mid-Atlantic coast and into southeastern New England, that will depend on the exact track of the storm, as a small shift can make a big difference, Sosnowski said.

The National Weather Service says their most optimistic models predict a 30-40% chance of snow, but 10-15% is more realistic in Northwest Florida.

Snow is showing signs of making a rare appearance in the South this weekend, with forecast models indicating a growing possibility of flakes falling across parts of the region. The FOX Forecast Center is tracking an increasing likelihood of meaningful snowfall along a corridor in the South,