Snippet from latest AFD Denver/Boulder-
There`s getting to be better agreement now on a large upper low moving slowly from Southern California Thursday across the southern Rockies Saturday and to the central plains by Monday. There are still some differences in the latitude and timing, but really given such a large, slow moving system, they may not be that important. The main story is that there`s a pretty good chance of a prolonged period of at least light snow, and possibly a period of heavy snow, for most of our area. The chance of significant snow looks greatest Friday and Saturday from about Denver southward, though there are some model solutions that have the significant precipitation further north or have steady precipitation all the way from Thursday night through Monday morning. Most model QPF for the Friday through Saturday period ranges from 1 to 3 inches. There are heavier solutions. It should be cold enough for this to be mostly snow, at least at 5000 feet and probably across the area.