Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
If you find supportable snow, you have probably found a cohesive slab on top of weak, cohesionless snow. These are places you can trigger an avalanche.
The most likely place to find this structure is on slopes where winds have drifted snow. Avoid these places to reduce your chances of triggering an avalanche. You can identify wind-loaded slopes by their smooth, rounded, often wave-like snow surface appearance and the hollow, hard feeling if you are traveling on them.