The models have been advertising a fairly exciting period of weather for this week and weekend the likes I'm not sure we've seen for some time.
It's a complicated enough situation that I struggled with how to describe it in this post, and ultimately decided to simply use the GFS forecast time-height section for Salt Lake City for a summary (click here for information on time-height sections and remember time increases to the left).
Through Wednesday, we're in the doldrums, but early Thursday we have a weak warm-frontal feature moving through northern Utah that might bring a bit of snow to the mountains. Then things get interesting as a deep upper-level trough digs southward out of the Gulf of Alaska and parks itself along the Pacific Coast. This leads to a period with strong southerly flow developing Thursday night and persisting into Friday. Any snow available for transport at that time will surely go for a ride and we may see some dust as well.
The downscaled NAEFS mean is about 1.5" of water through 0000 UTC 4 March (5 PM MST Saturday), with a little falling with the warm front and most falling with the cold front after mid-day Friday (there are differences in timing). This bodes well for a good powder day Saturday, provided the storm doesn't slow down (it happens).
This is a storm worth watching and hoping that it stays together in a way consistent with recent model runs.