Deep Persistent Slabs
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 2–3
Humans could trigger deep persistent slab avalanches on steep slopes above an elevation of 8,000 feet . Although the likelihood for these large slab avalanches to be human triggered continues to slowly decrease the consequences of triggering a slab avalanche 2 to 4 feet deep are likely to be severe. These dangerous slabs are most likely to fail when a larger impact such as a snow machine or a moving surface slab impacts a thin, weak spot on a slope.