Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–1.5
You can trigger an avalanche on steep slopes where a wind-drifted slab caps a weak layer of snow below. This dangerous combination is becoming harder to find, but it is most common near treeline on north-to-east-facing slopes. Look for smooth, rounded drifts below ridges or on the sides of gullies as prime spots to avoid. Seeking out wind-sheltered terrain will reduce your odds of finding this problem.