Persistent weak layers
- Above 2,000 m
- Size
- 3
Stability: poor · Frequency: some
Weakly bonded old snow represents the main danger. Wet snow requires caution.
Stability: poor · Frequency: some
Stability: poor · Frequency: few
Weakly bonded old snow represents the main danger. Wet snow requires caution.
Distinct weak layers exist in the bottom section of the snowpack in particular above approximately 2000 m. Winter sport participants can release avalanches as before. These can penetrate deep layers and reach large size, especially on west, north and east facing slopes. Individual avalanche prone locations are to be found also on southeast, south and southwest facing slopes above approximately 2400 m. Caution is to be exercised in particular at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example. Remotely triggered avalanches are possible. Outgoing longwave radiation during the night will be severely restricted at times. Individual small and, in isolated cases, medium-sized wet loose snow avalanches are possible below approximately 2200 m. In addition gliding avalanches are possible. This applies especially on cut and grassy slopes below approximately 2400 m.
The snowpack remains prone to triggering. Avalanche prone weak layers exist in the bottom section of the snowpack on west, north and east facing slopes. The surface of the snowpack will only just freeze and will soften quickly.
Weakly bonded old snow requires caution. Single winter sport participants can release avalanches as before. The weather will be sunny over a wide area. Slight increase in danger of wet avalanches as a consequence of warming during the day and solar radiation.
Bulletin data: Avalanche Warning Service Tirol, avalanche.report (CC BY 4.0)