Persistent Slabs
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 1–2
Above 7,500 feet, buried layers of faceted snow reside one to three feet beneath the snow surface. Skiers and riders venturing into steep, avalanche prone terrain still have the potential to trigger persistent slab avalanches failing on these weak layers.