Persistent weak layers
- Above treeline
- Size
- 2
Stability: poor · Frequency: few
Weak layers in the old snowpack can still be released in isolated cases.
Stability: poor · Frequency: few
Weak layers in the old snowpack can still be released in isolated cases.
Avalanches can in isolated cases be released in the old snowpack and reach medium size in isolated cases on northwest, north and northeast facing slopes. This applies in case of a single winter sport participant. In their paths avalanches can entrain the wet snow. As a consequence of warming during the day individual wet avalanches are possible.
Distinct weak layers exist in the old snowpack in particular on west, north and east facing slopes. Outgoing longwave radiation during the night will be reduced. The weather conditions as the day progresses will give rise to thorough wetting of the snowpack.
Weakly bonded old snow and wet snow require caution.
Bulletin data: Meteotrentino, avalanche.report (CC BY 4.0)