Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
The most dangerous slopes are upper-elevation easterly slopes that are receiving wind-drifted snow. Watch for shooting cracks as a warning sign. Avoid steep slopes where the snow feels much harder than in sheltered areas.
In these sheltered areas, keep an eye out for shooting cracks and sounds of collapsing as a sign that a weak buried layer of surface hoar, 1 to 2 feet from the surface, can be a problem. There is no way to know if this layer exists without digging into the snowpack and looking to see if it is there.