I'm considering doing a section from Erwin, TN to Roan Mountain at the end of December. Anyone know if they get much snow down there around that time? I only have a 30 degree bag but I also have a 25 degree thermolite reactor liner. I did a section up to Hot Spring in late November last year and I recall my main difficulties were the short amount of daylight and having to really look for blazes because the trail was full of leaves and snow on the last day. Any suggestions?