Deep Persistent Slabs
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Unlikely
- Dimensione
- 1–2.5
Basal facets or a facet–crust combination persist near the ground. Triggering is unlikely, but this type of deep persistent layer is inherently uncertain and may still be triggered in isolated, steep terrain with a thin-to-thick snowpack.