Persistent Slabs
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 2
Weak, faceted snow persists at the base of the snow pack on northerly and shaded aspects above 9,000 feet. Skiers and riders have the potential to trigger slab avalanches on this layer with depths to three feet. The strength of this layer is hard to predict and failure may occur after a slope has been crossed several times.