Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 1.5–2.5
Strong winds are drifting snow over a weak snowpack creating dangerous avalanche conditions. You can trigger an avalanche in the new snow that can step down to layers buried up to three feet deep. A slide that breaks on these layers would become very large and have catastrophic consequences. You may not see cracks in the new snow, but don't let a lack of instability at the surface move your focus from deeper, weak layers. You can find safer riding by avoiding slopes steeper than about 30 degrees.