It was one of those icy snows. I'd say 1/2" or so; didn't look like much to the naked eye, but try walking on it. Down you would go. Road were ice-slickened by 4:30 or so.
And it was supposed to be nothing more than a few flurries, with the potential for a light dusting. Started flurrying around noon and picked up intensity about 2-3 hours later.