Fresh foehn-induced snowdrifts on north-facing slopes prone to triggering. Avalanches can fracture in weak old snow.
Avalanche danger is considerable above 1900m, below that altitude danger is low. Medium-sized slab avalanches can be triggered by one sole skier in a few steep spots above 1900m, snowdrifts also lie deposited distant from ridgelines in gujllies and bowls and the releases grow to medium size. Especially above 2200m avalanches can fracture in the weak old snow, esp. on seldom-tracked steep north-facing slopes. Caution urged esp. above 2500m on E/W facing slopes. Avalanches in the near-surface drifts remain small-sized. During the course of the day, naturally triggered loose-snow avalanches can be expected in extremely steep south-facing terrain, releases mostly small-sized.
Snowpack
On shady slopes, fresh foehn-induced snowdrifts lie deposited atop an unfavorable old snowpack surface. Inside the drifts, weak layers can form. In addition, inside the old snowpack fundament there are several layers of faceted crystals, these weak laysers can serve as a slab to the freshly generated drifts. Due to reduced nocturnal outgoing longwave radiation and often diffuse radiation the snowpack is superficially moist and is forfeiting its firmness.
Tendency
Likelihood of the snowdrifts triggering will gradually decrease
Danger level
1900m
Avalanche Problem
Wind slab
1900m
Persistent weak layer
2400m
Fresh foehn-induced snowdrifts on north-facing slopes prone to triggering. Avalanches can fracture in weak old snow.
Avalanche danger is moderate above 1900m, below that altitude danger is low. Medium-sized slab avalanches can be triggered by one sole skier in a few steep spots above 1900m, snowdrifts also lie deposited distant from ridgelines in gujllies and bowls and the releases grow to medium size. Especially above 2200m avalanches can fracture in the weak old snow, esp. on seldom-tracked steep north-facing slopes. Caution urged esp. above 2500m on E/W facing slopes. Avalanches in the near-surface drifts remain small-sized. During the course of the day, naturally triggered loose-snow avalanches can be expected in extremely steep south-facing terrain, releases mostly small-sized.
Snowpack
On shady slopes, fresh foehn-induced snowdrifts lie deposited atop an unfavorable old snowpack surface. Inside the drifts, weak layers can form. In addition, inside the old snowpack fundament there are several layers of faceted crystals, these weak laysers can serve as a slab to the freshly generated drifts. Due to reduced nocturnal outgoing longwave radiation and often diffuse radiation the snowpack is superficially moist and is forfeiting its firmness.
Tendency
Little change expected
Danger level
Avalanche Problem
Wet snow
Danger of falling outweighs that of being buried in snow masses
Avalanche danger is low. Isolated small loose-snow naturally triggered avalanches are possible or can be triggered by one sole skier. Danger zones for small slab avalanches in the snowdrifts occur seldom on very steep N/E facing slopes at high altitudes. On steep grass-covered slopes, isolated small glide-snow avalanches are possible.
Snowpack
The shallow, generally stable snowpack has consolidated well. On shady slopes, thin fresh snowdrift accumulations are being generated. Due to reduced nocturnal outgoing longwave radiation and often diffuse radiation the snowpack is superficially moist and forfeiting its firmness.
