Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 2–2.5
Shifting westerly winds will form new slabs on higher elevation wind-drifted slopes. The most dangerous aspects face north, northeast, and east, where new slabs overlap with weaker layers buried in the snowpack. You can trigger a small avalanche in the newly drifted snow that could step down to one of these layers, creating a much larger slide. Smooth rounded surfaces or stiff, hollow slabs below ridges or the sides of steep gullies are likely places to encounter these problems. Lower-angle, wind-sheltered slopes will provide safe riding options.