Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 2
The skier triggered avalanche demonstrates what we are dealing with and what we will be dealing with for a while to come. There are numerous layers of weak faceted sugary snow at the base of our snowpack. At this point we don't quite have the right snow structure on top of the weak snow to create widespread avalanches. In many areas, it is just low density powder on top of weak sugary snow. But, in some places, the new snow has formed enough of a slab where it will crack out on the weak sugar. Most likely areas right now would be where the new snow is wind affected. However, the skier triggered slide demonstrates that you can find sheltered areas that have enough of a slab to avalanche. My guess is we will see more of this during upcoming storms.