So me and a few other guys are on a Tennessee sports message board. I joined that site in 2004 and we have been chasing these storms since then. In the 18 years I’ve been chasing snow on VQ, I can only remember 1 or 2 storms where we didn’t have a temp profile issue somewhere in the column. The valley is always threading the needle but as we go you will see that for whatever reason, interstate 40 turns out to be the R/S line 90% of the time. A good example is the last storm. I’m 20 min north of Knoxville in Halls and the last storm I stayed all snow. One of my good friends lives 2 miles south of 40 in west Knoxville and he was 50/50 rain snow. Knoxville is wild .