As shown in the 84-hour GFS forecast below, a deep upper-level trough is forecast to dig into the American Southwest this weekend. This leads to the development of an Intermountain cyclone over Nevada and Utah on Saturday.
Right now, the GFS brings the cold-air into northern Utah Saturday night and Sunday, along with a band of frontal precipitation.
This is yet another digging, splitting system, so snowfall amounts in the Wasatch Mountains are going to depend quite a bit on the details of the trough position, track, and intensity, as well as whether or not things get going in the post-trough environment early next week. Colder air is coming, but for the precipitation forecast, the devil is in details that are difficult to predict with confidence at these long lead times. Keep your fingers crossed.