Hate to say it and you’ve seen it before but the French broad river valley is not the ideal place when it’s a CAD situation. The warmer air just tunnels down that valley.
I’m not discounting it, I just need to see it on more than one run. If 18Z has it, especially more pronounced, then it’s trouble for some areas especially west of escarpment.
Yeah worst case road conditions would be a snow pack with a couple inches of sleet on top and a glaze of freezing rain as the cherry on top. Nightmare.