Daytime increase in avalanche danger due to fresh snow and winds
Danger above 1800m is moderate, below that altitude danger is low. Avalanches can be triggered by one sole skier in places and in isolated cases grow to medium size. Danger zones in the old snow occur esp. on north-facing slopes above 2200m. Fresh drifts also occur distant from ridgelines, behind protruberances in the terrain and in gullies and bowls. Due to solar radiation during the afternoon hours, naturally triggered loose-snow avalanches are possible. Small to medium glide-snow avalanches can trigger naturally in very to extremely steep grass-covered terrain.
Snowpack
By Sunday midday, 20cm fresh snow at high altitudes. Above 2200m on north-facing slopes: weak layers of faceted crystals in lowermost part of snowpack. Above 2400m on W/S/E-facing slopes: faceted crystals between crusts. Inside the snowdrift accumulations, trigger-sensitive layers can quickly form. Below 2000m the old snow is moist, a crust has often formed on the surface.
Tendency
Dense clouds at night, the snowpack can hardly cool. Snowfall will set in. Avalanche danger will increase during the course of the day.
Danger level
2200m
Avalanche Problem
Persistent weak layer
2200m
New snow
2000m
Unfavorable avalanche situation in outlying terrain
Avalanche danger above 2000m is HIGH. In many danger zones avalanches can be triggered by minimum additional loading and grow to medium size, also isolated naturally triggered avalanches from ridgeline snowdrifts are possible. Near-surface slab avalanches in fresh snow and drifts can fracture down to deeper layers above 2200m on W/N/E-facing slopes and grow to large size. Due to solar radiation in afternoon hours, naturally triggered loose-snow avalanches can be expected. Avalanches released at higher altitudes can fracture down to deeper layers and then plummet down to green zones. Especially above the timberline, small-to-medium glide-snow avalanches can trigger naturally in very steep grass-covered terrain.
Snowpack
More fresh fallen snow than expected: since Friday evening 50-80cm of fresh snow has been registered at high altitudes. Northerly winds were blowing at strong velocity. Inside the fresh snow and drifts, melt-freeze crusts lie embedded. Below 2000m the old snow is moist.
Tendency
Avalanche danger expected to remain HIGH
Danger level
treeline
Avalanche Problem
New snow
Treeline
Gliding snow
Treeline
Naturally triggered gliding-snow and loose-snow avalanche activity
Avalanche danger above the timberline is moderate, below that altitude danger is low. Glide-snow and loose-snow avalanches can trigger naturally in some places on very-to-extremely steep slopes and in isolated cases grow to large size. Avalanche activity will increase during the afternoon hours due to solar radiation. Above 2000m the fresh drifts are prone to triggering and can be triggered even by minimum additional loading. Releases will remain small, in isolated cases medium-sized.
Snowpack
By Sunday midday, 30-50cm of fresh snow at high altitudes. Prior to the snowfall, sunny slopes were bare of snow by and large, shady slopes were often thoroughly wet. Inside the drifts, trigger-sensitive weak layers can rapidly form.
Tendency
Danger level
2000m
Avalanche Problem
Wind slab
2000m
Persistent weak layer
2200m
Gliding snow
Treeline
Fresh snow and drifts often deposited atop unfavorable old snowpack
Avalanche danger is considerable above 2000m, avalanches can be triggered by one sole skier in places and grow to large size. Fresh snowdrift accumulations lie deposited behind protruberances in the terrain, and in gullies and bowls. Danger zones in the old snow occur on north-facing slopes above 2200m, above 2400m in all aspects. Avalanches in the weak old snow can fracture deeper down and grow to large size. Due to solar radiaiton during the afternoon hours, naturally triggered loose-snow avalanches can be expected. At higher altitudes, releases can sweep along moistened snow masses in the course of their plummet path and in very isolated cases even reach green areas. Small to medium-sized glide-snow avalanches can trigger naturally in very steep grass-covered terrain.
Snowpack
By Sunday midday, 30-50cm fresh snow at high altitudes. Above 2200m on north-facing slopes: weak layers of faceted crystals in lowermost part of snowpack. Above 2400m on W/S/E-facing slopes: faceted crystals between crusts. Inside the snowdrift accumulations, trigger-sensitive layers can quickly form. Below 2000m the old snow is moist, a crust has often formed on the surface.
Tendency
On Saturday night, fresh snowdrifts will accumulate due to fresh snow and wind
Danger level
2000m
Avalanche Problem
Wind slab
2000m
Avalanche danger levels increasing through the day due to fresh snow and winds
Avalanche danger above 1800m is moderate, below that altitude danger is low. Wherever winds transport the fresh fallen snow, avalanches can be triggered even by one sole skier and in isolated cases grow to large size. Fresh drifts occur esp. near ridgelines, behind protruberances in the terrain, in gullies and bowls. Due to solar radiation during the afternoon, naturally triggered loose-snow avalanches are possible. Small-to-medium glide-snow avalanches can trigger naturally in very-to-extremely steep terrain.
Snowpack
By Sunday midday, 20-30cm of fresh snow at high altitudes. Inside the accumulated snowdrifts, trigger-sensitive weak layers can rapidly form. Below 2000m the old snow is moist, in places a crust has formed on the surface.
Tendency
As fresh fallen snow accumulates and winds continue to blow, avalanche danger levels will increase slightly
