Deep Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alta montaña
- Límite del bosque
- Bajo el límite del bosque
- Probabilidad
- Unlikely - Possible
- Tamaño
- 1.5–3
The basal layers are very weak. An avalanche initiated in the upper snowpack could step down to the bottom of the snowpack.