I can’t remember what year, less than 10 years ago, but on the NW side of a line from Morristown to London got hammered from a event that was forecasted to be snow, rain, snow but CAD kept everything snow NW of that line. I ended up with 9” and the temps never got above 28°. At the same time, Sevierville was all rain in the mid 40’s. Edit this to change NE to NW of the line. .