Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible - Likely
- Taille
- 2–5
A persistent weakness buried mid-December is spotty in distribution and reactivity, but remains problematic at and below treeline where the snowpack structure is primed for human triggering.