Persistent weak layers
- Above 2,200 m
- Size
- 3
Stability: very poor · Frequency: some
New snow and weakly bonded old snow represent the main danger.
Stability: very poor · Frequency: some
Stability: poor · Frequency: some
Stability: very poor · Frequency: few
New snow and weakly bonded old snow represent the main danger.
The large quantity of fresh snow as well as the widespread extensive wind slabs can be released easily, even by a single winter sport participant,. These are covered with new snow in some cases and therefore difficult to recognise. Remotely triggered and natural avalanches are possible in isolated cases. Additionally avalanches can also release deeper layers of the snowpack and reach large size. This applies in particular on steep, little used shady slopes above approximately 2200 m, as well as on steep, little used west and east facing slopes above approximately 2600 m. Gliding avalanches can also occur. This applies on grassy slopes below approximately 2400 m, in the regions exposed to a lot of precipitation especially.
50 to 80 cm of snow, and up to 100 cm in some localities, fell in the last few days, in particular at high altitudes and in high Alpine regions. The fresh snow and the extensive wind slabs formed during the snowfall are lying on soft layers in all aspects above approximately 2000 m. West, south and east facing slopes below approximately 2400 m: The new snow is lying on a crust. Avalanche prone weak layers exist in the old snowpack especially on little used west, north and east facing slopes. This applies on shady slopes above approximately 2200 m, as well as on west and east facing slopes above approximately 2600 m.
Gradual decrease in avalanche danger.
Bulletin data: Avalanche Warning Service Tirol, avalanche.report (CC BY 4.0)