Persistent weak layers
- Above 1,900 m
- Size
- 2
Stability: poor · Frequency: few
Increase in avalanche danger as a consequence of the snowfall. Weak layers in the upper part of the snowpack necessitate caution.
Stability: poor · Frequency: few
Increase in avalanche danger as a consequence of the snowfall. Weak layers in the upper part of the snowpack necessitate caution.
Even single winter sport participants can release avalanches in isolated cases. These can be triggered in near-surface layers. Avalanche prone locations are to be found in particular adjacent to ridgelines and in pass areas. In very isolated cases avalanches can also penetrate near-ground layers of the snowpack and reach medium size. Caution is to be exercised in particular on little used west, north and northeast facing slopes above approximately 1900 m. Especially transitions from a shallow to a deep snowpack are unfavourable. Isolated whumpfing sounds can indicate the danger.
In some localities up to 10 cm of snow will fall during the night. The new snow and wind slabs will be deposited on the unfavourable surface of an old snowpack, especially on very steep west, north and northeast facing slopes above approximately 1900 m. Large-grained weak layers exist in the bottom section of the snowpack. Steep sunny slopes: The weather conditions will give rise to moistening of the snowpack. In the event of solar radiation this applies in particular.
Weakly bonded old snow requires caution.
Bulletin data: Avalanche Warning Service Carinthia, lawinen.report (CC BY 4.0)