Deep Persistent Slabs
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Unlikely - Possible
- Taille
- 1.5–3
Much of the lower snowpack is made up of weak, unconsolidated facets and depth hoar crystals. Steer clear of large slopes with a cohesive slab on the surface, likely created by previous wind loading. Any small avalanche or sluff in steep terrain has the potential to step down to this deeper layer, resulting in a large avalanche.