Persistent weak layers
- Above 1,800 m
- Größe
- 2
Stability: poor · Frequency: some
Shady slopes: Weakly bonded old snow requires caution. Very steep sunny slopes: Increase in danger of wet avalanches as a consequence of warming.
Stability: poor · Frequency: some
Stability: very poor · Frequency: some
15 to 25 cm of snow, and even more in some localities, fell in the last few days. 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 gradual and thorough wetting of the snowpack. This applies in particular on very steep sunny slopes.
The activity of wet avalanches will gradually increase.
Shady slopes: Weakly bonded old snow requires caution. Very steep sunny slopes: Increase in danger of wet avalanches as a consequence of warming.
Avalanches can be released in the old snowpack and reach medium size on west, north and east facing slopes. This applies in case of a single winter sport participant, especially above approximately 1800 m. In their paths avalanches can entrain the wet snow. This extends the avalanche runout distances. As a consequence of warming during the day and solar radiation small and, in isolated cases, medium-sized wet loose snow avalanches are possible. In addition especially at the base of rock walls, individual small and medium-sized wet avalanches are possible. The runout zones are to be treated with caution.
Bulletin data: Avalanche Warning Service Carinthia, lawinen.report (CC BY 4.0)