Persistent weak layers
- Above 2,000 m
- Dimensione
- 3
Stability: poor · Frequency: some
Weakly bonded old snow requires caution.
Stability: poor · Frequency: some
Weakly bonded old 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 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 reduced at times. As a consequence of warming during the day and solar radiation individual mostly small 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 freeze to form a strong crust and will soften during the day.
Weakly bonded old snow requires caution. 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)