Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 2–3
Dangerous avalanche conditions exist. You likely will not see any obvious signs of instability such as shooting cracks or collapsing in the snowpack, and you might be able to travel across a slope multiple times before you trigger a large and unsurvivable avalanche. These avalanches can be triggered from the bottom of a slope or hundreds of feet away so be aware of steep slopes above you and other people traveling near you. Treat all slopes steeper than about 30 degrees as suspect and keep in mind that tracks on a slope do not mean that it is safe. You can always find safer travel options by sticking to low-angle slopes without steep slopes above you.