Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 3
I am concerned with steep wind loaded terrain with basal weak layers. Avalanches in these layers have not been as prevalent as in SLC and Provo, but patience is key for me as consequences speak for themselves.
I anticipate that a few people will begin stepping out into steeper terrain today but the difference between joy and terror is sometimes just a matter of a few degrees of separation. As in about 10° of separation. You can find just as much joy on low angle terrain as you can on steep high angle terrain today. The options are simple.
Low Risk - High Reward
High Risk - High Reward
I will say that this takes discipline to stay the course and not drift into steeper terrain, even if you see tracks on those slopes. With this type of tricky snow structure, tracks offer zero indication of stability. Similarly, you may not experience any cracking or collapsing. No matter - patience is required. You are still likely to trigger a deeper slab avalanche 2-5' deep where the slab is thinner, in steep rocky terrain, or in areas that have avalanched previously this winter. I would not trust the steep terrain of the Snowbasin backcountry.
The Key is to do the Work-
- Ski cuts and cornice drops can be dangerous and dangerously misleading indicators of stability
- Dig down and if you see weak facets in the snowpack, avoid steep terrain
- Choose a completely safe uptrack. You are often more vulnerable while ascending.
- Expose only one person at a time and keep tabs on people all the time
