Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
You will most likely trigger a large avalanche on steep slopes with shallow snow coverage. Lots of trigger points like rocks, trees, and convex rolls will increase your chances of impacting deeply buried weak layers. Avoid pillows of rounded snow where the wind has drifted snow below ridgelines and along gully walls. These small avalanches could step down deep in the snowpack to give a very serious avalanche. You are unlikely to get feedback like cracking or collapsing before triggering a large avalanche, and multiple people could travel on a slope before it slides. You can reduce your hazard further by choosing planar slopes with a smooth outrun and lower-angle slopes.