Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 2–3
You can trigger a large avalanche where strong winds drift the recent snow at upper elevations. Expect thick slabs that rest on a weak layer buried one to three feet deep. The strong winds created unusual loading patterns, so anticipate drifted snow further down the slope. While initiating an avalanche in the surface snow might seem manageable, it could step down into a more deeply buried weak layer. For a safer travel option, look for wind-sheltered slopes or slopes less than about 30 degrees.