Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
55 cm of old snow has been sitting in the cold temps slowly loosing cohesion. The concern is that this snow has reacted as a slab and it is resting on buried weak layers. Human triggering may remain possible, especially in steep unsupported terrain.