Persistent Slabs
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Unlikely
- Größe
- 2
It's been more than three weeks since our last storm/avalanche event, and the likelihood of triggering a persistent slab avalanche is low. Nevertheless, poor snowpack structure, comprised of a dense slab over weak, faceted snow still exists in some areas above treeline and although unlikely, triggering an avalanche is not impossible. For the most part, poor snow conditions will prevent you from even wanting to be in areas where this structure exists, but you should still keep it in mind as you move through the mountains.
On many northerly aspects near treeline and below, the slab has faceted through and has lost all cohesion. This is where you will find the softest snow right now but obstacles are not far below the surface. You may also encounter loose snow sluffs in these areas. Looking ahead, this loose, cohesion-less snow will undoubtedly form our next persistent weak layer when snow finally comes.