Persistent Slabs
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 1–2
Large grained facets exist near the base of the snow pack. In some areas above 7,500 feet, buried layers of surface hoar also remain a concern. On steep, avalanche prone slopes, backcountry travelers could trigger persistent slab avalanches failing on these weak layers. These slabs could range in depth from one to three feet.