Week in Review - December 16 - 22, 2017
Before proceeding with the week in review, it is first worth quickly reviewing the season thus far. This Autumn was characterized by a handful of small storms sandwiched between extended periods of high pressure with cold, clear weather that created a very weak and shallow snowpack comprising loose, sugary (“faceted”) crystals. This is a very dangerous setup for avalanches once there is enough of a load on top.
In the central Wasatch there is currently about 2-3' in upper elevation shady aspects. Southerly aspects were bare ground prior to the Wednesday Dec 20 storm, with thin coverage on southwest and southeast.
- Saturday Dec 16 the Wasatch mountains picked up a trace to 2” of very low-density snow.
- Quiet weather Sunday through Tuesday allowed the thin snowpack to continue to weaken.
- Strong southerly winds on Wednesday ushered in a cold front that arrived late Wednesday afternoon. Storm and water totals by Thursday included
Provo mountains - 3” / 0.3”
Central Wasatch - 4-9” / 0.3-0.4”
Ogden mountains - 2-5” / 0.05 - 0.25”