Wind slabs and weakly bonded old snow require caution.
Distinct weak layers in the old snowpack can be released easily by individual winter sport participants especially in little used terrain. Remotely triggered avalanches are possible. Steep, little used shady slopes are to be avoided as far as possible. Mostly avalanches are medium-sized. Caution is to be exercised in particular on steep west, north and east facing slopes above the tree line. The avalanche prone locations are difficult to recognise. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack and fresh avalanches serve as an alarm indicating the danger.
Fresh and somewhat older wind slabs are prone to triggering, in particular in gullies and bowls, and behind abrupt changes in the terrain above the tree line. They are clearly recognisable to the trained eye.
Restraint is advisable.
Snowpack
dp.1: deep persistent weak layer dp.8: surface hoar blanketed with snow
Some snow will fall. As a consequence of a strong wind from northwesterly directions, avalanche prone wind slabs will form especially in gullies and bowls. Somewhat older wind slabs are lying on surface hoar in some places.
Above the tree line: The snowpack will be prone to triggering. Distinct weak layers exist in the old snowpack. This applies in particular on west, north and east facing slopes.
Tendency
Weak layers in the old snowpack represent the main danger. Restraint is appropriate.
Some snow will fall.
Danger level
treeline
Avalanche Problem
Persistent weak layer
Treeline
Wind slab
Treeline
The off-piste conditions are unfavourable. Wind slabs and weakly bonded old snow require caution.
Distinct weak layers in the old snowpack can be released easily by individual winter sport participants especially in little used terrain. Caution is to be exercised in particular on steep west, north and east facing slopes above the tree line. The avalanche prone locations are difficult to recognise. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack and fresh avalanches serve as an alarm indicating the danger. Remotely triggered avalanches are possible. Mostly avalanches are medium-sized.
As a consequence of new snow and a strong northwesterly wind, easily released wind slabs will form in particular above the tree line, in particular in gullies and bowls, and behind abrupt changes in the terrain. Individual natural avalanches are to be expected.
Restraint is advisable.
Snowpack
dp.1: deep persistent weak layer dp.8: surface hoar blanketed with snow
Over a wide area 10 to 20 cm of snow will fall on Monday. As a consequence of a strong wind from northwesterly directions, avalanche prone wind slabs will form especially in gullies and bowls and behind abrupt changes in the terrain. Somewhat older wind slabs are lying on surface hoar in some places. Distinct weak layers exist in the old snowpack. This applies in particular on west, north and east facing slopes above the tree line.
Tendency
Weak layers in the old snowpack represent the main danger. Restraint is appropriate.
In some regions increase in avalanche danger as a consequence of new snow and wind. This applies in particular in the north and in the west.
Danger level
treeline
Avalanche Problem
Persistent weak layer
Treeline
Wind slab
Treeline
Natural avalanches are possible.
The off-piste conditions are dangerous. Wind slabs and weakly bonded old snow require caution.
The fresh snow and the wind slabs that are being formed by the strong westerly wind can be released very easily. The avalanche prone locations are to be found in particular in gullies and bowls, and behind abrupt changes in the terrain above the tree line. Individual avalanche prone locations are to be found also in areas close to the tree line. In some places avalanches can also penetrate near-ground layers of the snowpack and reach large size in isolated cases, in particular on west, north and east facing slopes. These places are difficult to recognise. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack and fresh avalanches serve as an alarm indicating the danger. Remotely triggered avalanches are possible.
As a consequence of the snowfall the avalanche prone locations will become more prevalent as the day progresses. Individual natural avalanches are to be expected.
At low and intermediate altitudes small wet loose snow slides are to be expected as a consequence of the rain, in particular on cut slopes, and on very steep grassy slopes.
Snowpack
dp.1: deep persistent weak layer dp.8: surface hoar blanketed with snow
Over a wide area 15 to 25 cm of snow, and even more in some localities, will fall on Monday. As a consequence of a strong wind from northwesterly directions, avalanche prone wind slabs will form. Somewhat older wind slabs are lying on surface hoar in some places.
The fresh snow and the wind slabs will be deposited on a weakly bonded old snowpack in particular on west, north and east facing slopes above the tree line. Faceted weak layers exist in the bottom section of the snowpack. Stability tests and reports filed by observers confirm the existence of a weak snowack.
Tendency
Further increase in avalanche danger as a consequence of new snow and wind. Weak layers in the old snowpack represent the main danger. Natural avalanches are to be expected.
Danger level
treeline
Avalanche Problem
Persistent weak layer
Treeline
Wind slab
Treeline
Wind slabs and weakly bonded old snow require caution.
Avalanches can be released by a single winter sport participant. This applies especially on steep shady slopes adjacent to ridgelines and in gullies and bowls above the tree line. As a consequence of the occasionally strong northerly wind, fresh snow drift accumulations will form. These are in some cases prone to triggering. In some cases avalanches are medium-sized.
Backcountry touring calls for caution and restraint. Only a small amount of snow is lying for the time of year.
Snowpack
dp.6: cold, loose snow and wind
Some snow will fall. Faceted weak layers exist in the old snowpack. The fresh and older wind slabs are lying on the unfavourable surface of an old snowpack at elevated altitudes.
Low and intermediate altitudes: The snowpack is moist and its surface has a melt-freeze crust that is barely capable of bearing a load.
