Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 2–3
Avalanches are becoming harder to trigger and less likely to occur, but if you get one to go, it could become very large. The weak layers of concern are buried relatively deep, and you can reduce the potential to trigger these by avoiding slopes with shallow or uneven snow cover. Rocky convex rollovers, slopes that avalanched earlier this season, or typically wind-scoured slopes are all places where you can impact the buried weak layers. You can trigger avalanches on higher-elevation slopes where the wind has drifted snow. Avoid steep slopes where the snow surface is pillowed or wavy, often below cornices.