Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
You can trigger an avalanche on steep wind-drifted slopes, especially those that face the north half of the compass. These wind-drifted slopes can be identified by harder-feeling, supportable snow. The slopes where harder slabs sit over collapsible weak layers are often located directly below ridgetop and in steep above treeline gullies.