January makes the Parkway a gamble, so skip the high ridges and take the valley. I-81 down the Shenandoah, then only cut toward Asheville if the forecast is clear. Otherwise drop to I-77 and I-26 through the Carolinas and pick up I-75 for Tampa. If low and salty sounds better, the Eastern Shore, Outer Banks, Charleston, and Savannah is slower and prettier than 95, with almost no ice. Charleston and Savannah are the easy extra-point stops either way. Mountain views, or not dealing with a closure?