Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1
A strong-over-weak snowpack structure persists, with old, weak snow near the ground. The possibility remains to trigger a small soft or hard slab avalanche that fails on a persistent weak layer of facets near the ground. These avalanches are most likely on upper-elevation slopes where southerly winds have drifted additional snow onto the terrain.
While the snow may feel solid near the ridge, it will likely soften as you descend. Be careful of this transition—once you are a few turns onto the slope and the snowpack thins, you are in a prime spot to trigger a soft or hard slab that breaks above you.