Persistent Slabs
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Likely
- Größe
- 3
Very weak faceted snow exists near the ground on almost all northerly-facing slopes at upper and mid-elevations. While definitive signs of instability like collapsing are waning, the poor snowpack structure hasn't gone anywhere. It is still our top concern and not to be trifled with. We need to give slopes with poor snow structure and a buried, persistent weak layer more time to heal.
- Recent avalanches, shooting cracks, and collapsing (whumpfs) are signs of unstable snow, but these obvious signs of instability will not always be present when a large avalanche occurs.
- Avalanches could be triggered remotely (from a distance) or worse, from below steep slopes in the flats.