Deep Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 2–3
Backcountry travelers could trigger a deep slab avalanche with depths to five on steep avalanche prone slopes. These dangerous deep slab avalanches are most likely to be triggered by a snowmobile or a cornice failure. Consequences would be severe if a person was caught in one of these large, destructive avalanches.