I think this event in 2003 was also a case of the exception. I recall it being in the 70s the day before but it was snowing pretty good by mid morning the following day. We got a pretty solid coating on grassy surfaces. Of course, it warmed up to 40 by the afternoon and it all melted, but it was neat. I was in Greensboro.
I think I might remember the 2013 event you refer to, as well. I recall it being in the 60s early in the day in Greensboro, but by early evening flakes were flying. It was a sloppy mess, though, and didn’t last long and never stuck, though.
Anyways, I would definitely think flakes tomorrow are very possible, I just think seeing accumulating snow would take a near miracle, despite what the clown maps might say.
On another note, I suppose I need to re-up my WeatherBell subscription now that I live in a place that actually gets snow again.