You can't stop Mother Nature this season. More insane numbers from the Wasatch. As reported by the Utah Avalanche Center this morning, storm totals for the PC Ridgline are now .95–1.05" water and 15–22" of snow and Upper Cottonwoods 1–2.5" of water and 16–35" of snow. The Ogden and Provo area Mountains have also been blessed with big dumps.
Snowfall late yesterday was intense at Alta-Collins. Hourly snow interval observations show an increase in snow depth from 3 to 10 inches in two hours from 5 to 7 PM. Normally the board is wiped between 4 and 5 PM, but I can't tell if that was done as the interval remained at 3 inches. Given the intense snowfall rates, it is possible it was wiped and it basically was snowing 3" an hour starting at about 4 PM.
I've heard that the Cottonwoods were a mess during this period and that the overnight road closure was moved up to 8 PM. If so, I suspect both were closely related to the heavy snowfall.
Radar observations during the period of heavy snowfall showed strong orographic enhancement of precipitation in the southern central Wasatch and Mt. Timpanogos area, with spillover to the Deer Valley Area. There was also enhancement over the southern Stansbury and Oquirrh Ranges.
Paraphrasing Frankie Valli: