Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 2–3
Thick, hard slabs of snow rest above weak snow layers on many upper-elevations slopes where you can trigger an avalanche. You may find deeper, wind-drifted areas that span adjacent terrain features on northerly and easterly-facing slopes. Most slides will break near the surface, but some may break deeper producing a larger slide. Use caution if traveling above terrain traps or cliff bands where a smaller avalanche could magnify the consequences of getting caught. Wind-sheltered slopes around 30 degrees, without steeper terrain overhead, offer safer travel options.
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