Allgäu Alps Central

Beware of persistent weak layers in shady aspects at high altitudes. Also circumvent areas below glide cracks.

Beware of persistent weak layers in shady aspects at high altitudes. Also circumvent areas 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 in steep high altitude terrain adjacent to ridges. 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 and expansively metamorphosed at the surface. Intensifying southwesterly winds will accumulate shallow snowdrifts at high altitude that are prone to triggering. In some places at high altitude, a weak layer still persists within the snowpack underneath a melt-freeze crust or underneath older snowdrift accumulations. The proneness to triggering of that layers increases with ascending altitude. The snowpack is often wet down to the ground. Gliding movements over smooth grass-covered slopes are possible, especially at high altitudes where there is more snow.

On the shady side, more snowdrifts will accumulate on Friday atop an unfavorable old snowpack surface due to wind and new snow. Avalanche danger will increase.