Persistent weak layers
- Above 1,900 m
- Size
- 2
Stability: poor · Frequency: few
Little snow but moderate Avalanche danger due to old snow problem in high altitudes!
Stability: poor · Frequency: few
Little snow but moderate Avalanche danger due to old snow problem 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 north to southeast 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. Surface hoar has formed which stays only in shady areas. In sunny sides the surface turns wet or firn-like.
The high pressure system will cause sunny and mild mountain weather on Sunday. Excellent visibility and clear skies are forecasted. Light winds are called. Temperatures will be around 3 degrees on 2.000 m.
No significant changes of the avalanche danger. The high pressure system will last till Tuesday.
Bulletin data: Avalanche Warning Service Styria (CC BY 4.0)