Persistent Slabs
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Unlikely
- Größe
- 3
Triggering an avalanche 1-3' deep down into our old PWL persistent weak layer of facets and crusts is becoming less likely in most terrain. Although snowpits continue to show a poor structure and a "lively" interface between the strong slab over the weak facets, cracking and collapsing have become much less common. I suspect that this layering will become dormant in the days ahead.
In isolated terrain, you might be able to trigger an avalanche on easterly/southeasterly aspects on a weak combination formed Dec 5/6th. It's highly recommended to pull out the shovel to gauge the structure and sensitivity of what's on the slope you want to ski or ride. Extended column tests are a good test for this. More INFO.