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. Isolated whumpfing sounds and shooting cracks when stepping on the snowpack can indicate the danger.
The snowpack is unfavourably layered. In its middle, the snowpack is weak in some cases. The old snowpack consists of faceted crystals. Low and intermediate altitudes: The snowpack is moist and its surface has a melt-freeze crust that is barely capable of bearing a load. 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)