Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
The most dangerous terrain sits above around 11,000 feet. Avoid steep north-to-northeast-facing slopes that hold more than about two feet of denser, recently wind-drifted snow. Visible cracking or audible collapsing underfoot indicates the snow in that area can avalanche on slopes steeper than around 30 degrees.
You can expect safer avalanche conditions on other slopes but you may encounter early-season obstacles like logs and rocks.