Persistent Slabs
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Likely
- Größe
- 4
Persistent Weak Layers of snow lurking in the snowpack remain our main concern today. The signs of danger are there:
- Recent avalanches breaking into these persistent weak layers
- Collapsing or "whoomping" of the snowpack continues
- Cracking of the snowpack
- Recent strong wind which loaded slopes with wind drifted snow
During the rescue operation on Saturday, everyone who was on snow was experiencing collapsing or "whoomping" of the snowpack. This tells us that the buried persistent weak layers are failing suddenly as we disturb the snow on top. All you need is a steep enough slope and these "whoomps" turn into avalanches.