Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
You are most likely to trigger an avalanche in wind-affected areas. Avoid traveling near common trigger points, such as convex rollovers, rocky outcrops, or the edges of slopes where the margins of a slab are the thinnest. Give yourself a wide buffer from suspect slopes steeper than around 35 degrees. You could trigger an avalanche from below, and avalanches could break broader than you expect. You may not experience obvious signs of instability before triggering a dangerous avalanche.
Sunny slopes will warm significantly. Avoid traveling on or below slopes with rollerballs or wet, gloppy snow.