We have several weak layers in the snowpack that could fail causing an avalanche, likely a large deadly avalanche. It's hard to find places that exhibit reactive test results, but the evidence is in recently human triggered avalanches. We are not getting a ton of new snow and together with the mild temperatures this will create a strong snowpack over time. The places to watch out for are shallower snowpack areas where the persistent weak layer is easier to trigger.
We are entering a warming trend, which is generally healthy for the snowpack. The conditions are right for surface hoar development; however, I am only finding very isolated evidence of this. Something to keep an eye out for.
I am finding very solid snowpack in most areas. We dug one pit yesterday that exhibited two weak layers in the top 35cm and one near the ground. This was a wind loaded slope with HN 230cm. CT test did not fail. No evidence of surface hoar at this location. 9100 feet on a NE aspect.
At lower elevations I found evidence of surface hoar forming, but not necessarily on the snow, see photo.
|Deep Persistent Slab||
Layer Depth/Date: near ground 1/7/2023
Weak Layer(s): Nov 1, 2022 (FC)
Comments: CTN This layer is more sensitive in shallower snowpack. I am finding a very solid slab on top of this layer in all locations.
Don't forget about recent avalanche activity within the forecast area. Even though most of the potential avalanches have released there is one waiting for a person to find the trigger point and go big.
We are still avoiding all slopes above 30 degrees or anything connected to them.