Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Unlikely
- Size
- 4
The snowpack continues to settle, consolidate and stabilize. There is 3 to 4 feet of consolidated snow on top of the old Persistent Weak Layer that formed in November. This is a good thing. It is creating a strong bridge over the weak layer and at the same time it continues to press down on the weak layer, compacting it and making it stronger. This is a slow process but it's happening.
The only thing I don't like is that I can still get the weak layer to fracture and propagate clean in snow pit stability tests. It takes a lot of force to get the failure but it is clean when it fails. Eventually the fracturing will stop but it still makes me a bit uneasy. One thing I've learned is not to mess with buried sugary faceted layers of snow. I'll give it a little more time before stepping out.