vindog: If you look at a map of the area (see link below) you will see that Park City is only about ten or 15 miles from Little and Big Cottonwood Canyons (Alta, Snowbird, Solitude, Brighton). The storms come from the west and tend to take a line over the Lake (which never freezes because of the salt), pick up additional moisture, hit the west slope, rise up and dump. Park City is just a little off from the usual bullseye, although it can get more snow if the storm track is a little farther north. In SLC you can call one phone number in the morning that will give you 7 snow reports and then pick the area with the most snow because they are all within about an hour drive. I have been doing this for years and it is not unusual to have a big disparity in snowfall. It can snow so hard there that 0" new on the report can turn out to be 4" when the lifts open and 12" by the end of the day. Obviousluy, things can change there very fast.
I think it was Powder Magazine that had an article a few years ago with and analysis of which Salt Lake area would get the most snow depending on if the storm was coming from the NW, W, or SW. I'm sure the locals have this figured out.www.alpentech.net