Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Possible
- Größe
- 2–3
You can trigger an avalanche that breaks up to three feet deep where wind-drifted slabs rest over very weak snow. The most dangerous slopes are at higher elevations where slabs are thicker. You can identify wind-drifted features by their smooth rounded appearance and hollow feel.
Any avalanche you trigger in drifted snow can step down to more deeply buried weak layers resulting in a much larger, wider, and dangerous avalanche.