I’m sorry but I just can’t see how that GFS solution works to bring snow into the Piedmont of the NC. That run had Charlotte going from 55 at 18z to snow falling at 21z with the cold air coming in from the west over the mountains. The fastest temperature drop and into snow that I can recall in Charlotte metro was February 1999... the temperature went from 50 just before noon with rain and dropped to 32 by 5pm with heavy snow and thunder... that case however saw a strong CAD moving in to initially drop temperatures to the upper 30s to near 40 then an ULL moved over and cooled the column quickly enough to give us a quick 3 inches of snow... after the ULL moved past the temperature actually rose back into the upper 30s