Persistent weak layers
- Above 2,000 m
- Size
- 2
Stability: poor · Frequency: few
Weak layers in the old snowpack persist at high altitude on the shady side. In addition, avoid zones below glide cracks.
Stability: poor · Frequency: few
Stability: very poor · Frequency: few
Weak layers in the old snowpack persist at high altitude on the shady side. In addition, avoid zones below glide cracks.
Avalanche danger is moderate. Weak layers in the old snowpack are the main problem. Slab avalanches can trigger especially by large additional loading and in transition from shall to deep snow. Danger zones occur in particular in shady aspects, near ridgelines, in steep high altitude terrain. Avalanches can grow to medium size. In addition, glide-snow avalanches can release spontaneously at any time of day or night. This applies to steep grass-covered slopes, forest aisles, and rock slabs in all aspects. At high altitudes such avalanches can reach medium size.
Snow on the shady side is still dry; at higher altitudes expansively metamorphosed at the surface. In some places, weak layers persist underneath a melt-freeze crust or under older snowdrift accumulations; their proneness to triggering increases with ascending altitude. At low altitudes the snowpack is shallow, moist down to the ground. Gliding movements over smooth grass-covered slopes cannot be excluded, especially at high altitudes where there is more snow.
On Thursday, avalanche danger will change little.
Bulletin data: Avalanche Warning Service Bavaria (CC BY 4.0)