TLDR: 3-9” fell today at various places. Expect another tr-1” overnight (1-3” favored locations). Then high pressure with only occasional clouds (Sat, Tue) from dying storms to our north and south for the next 7 days.
The background grey color in the valley today wasn’t too different from the grey over the past few days, but oh what a difference the white flakes in the air and fresh coating of snow made!
As of 4pm it looks like the following amounts have accumulated since sunrise this morning: Upper Little Cottonwood 7-9”, Upper Big Cottonwood 5-7”, Park City area 3-5”, Ogden area 4-6”. Park city snow stake cameras were even less generous than that. Since around noon today we’ve been in the post-cold front “hit and miss” regime with moist northwesterly flow, which favors the Cottonwoods. A few of the flakes this afternoon may have been lake-enhanced as some weak, but relatively well-formed, cloud bands extended southeast of the lake (see below looking southwest from the Univ. of Utah at ~4pm MDT).
We may get a little more snow this evening but most indicators have the atmosphere drying out in the next couple hours. One weather model, the experimental FV3, keeps some precipitation coming until about midnight but it is the outlier. If you believe weather forecasting in general is difficult, try forecasting Great Salt Lake lake-effect snow, which usually humbles even the most seasoned forecaster. I predict the combo of weak lake-effect and other snow showers will bring another 1-3” overnight to the upper Cottonwood Canyons, with most of that falling before midnight. Hopefully I’m wrong and we get more!
After tonight things don’t look promising. High pressure and sun are certain Thu and Fri. A dying storm skirts to our north early Sat, likely just bringing clouds. Dry and warming conditions late Sat-Mon are followed by another dying storm that should stay south of us on Tue (again just clouds) with dry and warm after that. Enjoy the new snow because it’s doubtful we’ll get more in the foreseeable future.