Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 1–2
You can trigger a large avalanche from below or a distance. Observers reported triggering avalanches from hundreds of feet away. Near the treeline is the most dangerous, especially in recently drifted rocky areas. Above treeline, avalanches may be harder to trigger but will be equally deadly. Obvious signs of instability are decreasing and you might not see any before you trigger a slide. Don't let a lack of feedback from the snow lure you onto suspect slopes. Avoid being on or under slopes steeper than 30 degrees for safer travel.