Deep Persistent Slabs
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 2–3
Weak, faceted snow exists near the base of the snowpack, and backcountry travelers still have some potential of triggering persistent deep slab avalanches above 8,000 feet. The most likely scenario to trigger one of these slides is for a skier or rider to hit a weak shallow zone in the snowpack. A failure there can propagate into deeper snow resulting in a slide that could be up to 5 feet deep and easily cause serious injury or death.