Persistent weak layers
- Above 2,000 m
- Size
- 2
Stability: poor · Frequency: some
Weakly bonded old snow represents the main danger.
Stability: poor · Frequency: some
Weakly bonded old snow represents the main danger.
Avalanches can in some places be released easily, especially on steep west, north and east facing slopes above approximately 2000 m. Mostly avalanches are medium-sized. The avalanche prone locations are difficult to recognise. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack serve as an alarm indicating the danger.
The snowpack is unfavourably layered. In its middle, the snowpack is weak. The old snowpack consists of faceted crystals. The snowpack will become moist on steep sunny slopes. This applies at low and intermediate altitudes. The snowpack will be generally subject to considerable local variations. Only a small amount of snow is lying for the time of year in all altitude zones.
Weak layers in the old snowpack can still be released by individual winter sport participants.
Bulletin data: Avalanche Warning Service Tirol, avalanche.report (CC BY 4.0)