Persistent weak layers
- Above treeline
- Size
- 2
Stability: poor · Frequency: few
Weak layers in the old snowpack can still be released in isolated cases. The danger of wet avalanches will increase a little during the day.
Stability: poor · Frequency: few
Stability: very poor · Frequency: few
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.
Weak layers in the old snowpack can still be released in isolated cases. The danger of wet avalanches will increase a little during the day.
Avalanches can in isolated cases be released in the old snowpack and reach medium size in isolated cases on west, north and east 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.
Bulletin data: Avalanche Warning Service South Tyrol, avalanche.report (CC BY 4.0)