Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 3
New snow tonight and tomorrow will add additional stress to buried, persistent weak layers in the snowpack. Our primary concern is layer of weak, sugary snow at the base of the snowpack. Today there remains a very real possibility for triggering a deep and dangerous avalanche on this weak layer. By tomorrow, the danger will become likely, if not certain. The danger is greatest on steep, upper elevation slopes facing NW-N-E, but in some areas the problem wraps around to W and SE facing slopes.