Persistent weak layers
- Above 1,900 m
- Size
- 2
Stability: poor · Frequency: few
Moderate Avalanche danger in high altitudes!
Stability: poor · Frequency: few
Moderate Avalanche danger in high altitudes!
Moderate avalanche danger above 1.900 m, below that: low avalanche danger. Danger is caused by older driftsnow deposits which are located on a weak layers in the old snow in high altitudes and shady slopes. Especially the expositios northeast and east-occasionally south- close to the Alpenhauptkamm behind ridgelines and the beginnings of gullies and bowls are affected. Small to medium slab avalanches can be triggered with small additional loads.
South of the Alpenhauptkamm the snowcover is still thin. Exposed areas are blown-off and icy. Due to wind transfer, there is a bit more snow in gullies and bowls. The snow base doesn’t have significant weak layers. In shady high slopes there are faceted snow layers in the old snow which form weak layers. In the past clear nights surface hoar has formed which stays only in shady areas. In sunny sides the surface turns wet or firn-like.
Mild and sunny mountain weather on Suturday with just a few thin clouds. Weak northeasterly winds. Temperatures will be around 4 degrees on 2.000 m.
Decreasing avalanche danger in the next few days due to weather stability.
Bulletin data: Avalanche Warning Service Styria (CC BY 4.0)