Fresh, prone to triggering wind slab and weak persistent weak layer
The avalanche risk is considerable above 1800 metres and low below. The situation remains precarious for winter sports.
Medium-sized slab avalanches can easily be triggered by individuals in some places, especially on north-west to north to south-east facing slopes. This applies to both drift and persistent weak layers. Danger areas are sometimes barely recognisable and require a defensive choice of route. Take particular care near transitions from a little to a lot of snow, behind terrain edges and in the entrance areas to steep gullies and bowls. It is highly likely that avalanches triggered on the surface will tear through to deeper layers. Remote triggering is possible.
Snowpack
During the night to Sunday, 10 to 15 cm of new fallen snow fell on a small-scale surface. Fresh and older wind slab snow overlaid with soft layers of faceted crystals and deep rime. In wind-protected areas, on shady slopes above about 2000 m, on sunny slopes above 2400 m, surface hoar has also been snowed in in places. Fractures occur either in soft layers near the surface or around the crust that forms the transition to the completely angular old snowpack. In general, areas with little snow alternate with sometimes considerable snowdrift accumulations in a confined space with overall snow depths that are well below average.
Tendency
The wind picks up and fresh snowdrift accumulations continue to form. The persistent weak layer problem remains.
Danger level
1800m
Avalanche Problem
Persistent weak layer
1800m
Wind slab
Treeline
Fresh, prone to triggering wind slab and weak persistent weak layer at altitude
The avalanche risk is moderate above 1800 metres and low below.
Medium-sized slab avalanches can be triggered by individuals in some places, especially on north-west to north to south-east facing slopes. This applies to both drift and persistent weak layers. Surface-triggered avalanches can tear through to deeper layers. Danger areas increase with altitude, some of them are barely recognisable and require a defensive choice of route. Take particular care near transitions from little to much snow, behind terrain edges and in the entrance areas to steep gullies and bowls. Cracks when stepping on the snowpack indicate danger.
Snowpack
During the night to Sunday, 10 to 15 cm of new fallen snow fell on a small-scale surface. Fresh and older, over-snowed wind slabs overlay soft layers of faceted crystals and deep frost. In wind-protected, shady areas above around 2000 m, surface hoar has also been snowed in to some extent. Fractures occur either in soft layers near the surface or around the crust that forms the transition to the completely angular old snowpack. In general, areas with little snow alternate with sometimes considerable snowdrift accumulations in a confined space with overall snow depths that are well below average.
Tendency
The wind picks up and fresh snowdrift accumulations continue to form. The persistent weak layer problem remains.
Danger level
1800m
Avalanche Problem
Persistent weak layer
1800m
Wind slab
Treeline
Fresh wind slab snow overlays persistent weak layer problem
The avalanche risk is moderate above 1800 metres and low below. Especially in the sectors from north-west to north to south-east, slab avalanches can be triggered by individuals in some places. Avalanches in wind slabs usually remain small. Avalanches that are triggered in persistent weak layers in deep weak layers or tear through these weak layers can reach medium size. Be careful in particular near transitions from little to more snow and in the blown-in entrance areas to steep gullies. Avalanche prone locations are sometimes difficult to recognise and require a defensive route choice. In areas bordering on the "considerable" avalanche prone location, avalanches are more frequent and can become larger.
Snowpack
During the night to Sunday, up to 10 cm of new fallen snow fell on a surface that varied on a small scale. Within the snowpack, bonded snow overlaid soft, angular layers. In wind-protected, shady areas above around 2000 metres, surface hoar has also been snowed in in places. Fractures occur either in soft layers near the surface or around the crust that forms the transition to the completely built-up old snow foundation. In general, areas with little snow alternate with sometimes considerable snowdrift accumulations in a confined space, with overall snow depths well below average.
Tendency
Fresh snowdrift accumulations continue to develop, the persistent weak layer problem remains.
Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Persistent weak layer
2000m
Fresh wind slab prone to triggering
The avalanche risk is moderate above the tree line and low below. In the north-west to north to south-east orientated steep terrain, small avalanches can be triggered by individuals in some places. Above 2000 m, small slab avalanches are also possible in a few places in persistent weak layers. Danger areas are located at the transition from little to more snow and generally next to blown-off areas as well as in the entrance areas to gullies and bowls filled with wind slab. Caution in the area of terrain traps.
Snowpack
During the night to Sunday, 10 to 15 cm of new fallen snow will fall on a small-scale surface. Fresh, prone to triggering snowdrift accumulations form, older snowdrift accumulations are covered with snow. On shady slopes protected from the wind above around 2000 metres, surface hoar has also been covered with snow in some cases. At high altitudes, especially in northern and eastern aspects, bonded snow overlays a weak old snowpack of faceted crystals and deep frost.
Tendency
The wind picks up and fresh snowdrift accumulations continue to form. The persistent weak layer problem remains.
