Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Unlikely
- Size
- 1–2
Weak snow remains buried 1-3 feet deep. It has been 3 weeks since an avalanche was reported failing on weak snow at the ground. It is unlikely that you will trigger a large avalanche, but the consequence remains high. The most likely trigger points are in very steep upper-elevation terrain exposed to the wind where thin spots exist and impacting the buried weak layers is easier. Traveling one at a time through suspect terrain and only regrouping in safe areas will minimize your exposure.
An example of terrain where persistent slab avalanches are most likely.