Avalanche.report

Sunday 04.12.2022

Published 01 12 2022, 21:12


Danger level

2000m


Wind slabs are to be evaluated with care and prudence.

Wind slabs are to be evaluated with care and prudence. As a consequence of warming during the day medium-sized to large natural avalanches are possible above approximately 1500 m.

Over a wide area 40 cm of snow, and up to 60 cm in some localities, has fallen above approximately 1500 m. As a consequence of new snow and wind, sometimes avalanche prone wind slabs formed in all aspects. The new snow and wind slabs can be released easily, even by a single winter sport participant, above approximately 1400 m. Temporary safety measures may be necessary in some localities.

Snowpack

The wind slabs represent the main danger. New snow requires caution. Field observations confirm that the stability of the snowpack varies greatly within a small area.

Tendency

The old snowpack will be prone to triggering in some places. This applies in particular on steep shady slopes above approximately 2000 m. Towards its surface, the snowpack is unfavourably layered and its surface consists of loosely bonded snow lying on a melt-freeze crust that is barely capable of bearing a load.
Towards its base, the snowpack is faceted and weak. Remotely triggered avalanches are possible in isolated cases. The meteorological conditions will foster a substantial weakening of the near-surface layers. The snowpack will be prone to triggering in the northeast and in the northwest.


Danger level

2000m


Wind slabs are to be evaluated with care and prudence.

Wind slabs are to be evaluated with care and prudence. As a consequence of warming during the day medium-sized to large natural avalanches are possible above approximately 1500 m.

Over a wide area 40 cm of snow, and up to 60 cm in some localities, has fallen above approximately 1500 m. As a consequence of new snow and wind, sometimes avalanche prone wind slabs formed in all aspects. The new snow and wind slabs can be released easily, even by a single winter sport participant, above approximately 1400 m. Temporary safety measures may be necessary in some localities.

Snowpack

The wind slabs represent the main danger. New snow requires caution. Field observations confirm that the stability of the snowpack varies greatly within a small area.

Tendency

AM

Danger level

2700m
Avalanche Problem
Persistent weak layer
2700m

PM

Danger level

2700m
Avalanche Problem
Persistent weak layer
2700m

The avalanche conditions are very dangerous.

Weakly bonded old snow in particular on steep shady slopes. This applies in particular in little used terrain, as well as in areas where the snow cover is rather shallow above the tree line. Distinct weak layers in the upper part of the snowpack can be released in isolated cases even by individual winter sport participants in particular on steep shady slopes. Avalanches can penetrate even deep layers and reach a dangerous size. Distinct weak layers in the old snowpack necessitate defensive route selection. Isolated whumpfing sounds can indicate the danger.

Weakly bonded old snow in particular on steep shady slopes. This applies in particular in little used terrain, as well as in areas where the snow cover is rather shallow above the tree line. Distinct weak layers in the upper part of the snowpack can be released in isolated cases even by individual winter sport participants in particular on steep shady slopes. Avalanches can penetrate even deep layers and reach a dangerous size. Distinct weak layers in the old snowpack necessitate defensive route selection. Isolated whumpfing sounds can indicate the danger.

Snowpack

dp.1: deep persistent weak layer

The old snowpack will be prone to triggering in some places. This applies in particular on steep shady slopes above approximately 2000 m. Towards its surface, the snowpack is unfavourably layered and its surface consists of loosely bonded snow lying on a melt-freeze crust that is barely capable of bearing a load. Towards its base, the snowpack is faceted and weak. Remotely triggered avalanches are possible in isolated cases. Reports filed by observers and field observations confirm the unfavourable bonding of the snowpack on steep shady slopes. The meteorological conditions will foster a substantial weakening of the near-surface layers.
The snowpack will be prone to triggering in the northeast and in the northwest.

Tendency

The avalanche danger will persist.

AM

Danger level

2700m
Avalanche Problem
Persistent weak layer
2700m

PM

Danger level

2700m
Avalanche Problem
Persistent weak layer
2700m

The avalanche conditions are very dangerous.

Weakly bonded old snow in particular on steep shady slopes. This applies in particular in little used terrain, as well as in areas where the snow cover is rather shallow above the tree line. Distinct weak layers in the upper part of the snowpack can be released in isolated cases even by individual winter sport participants in particular on steep shady slopes. Avalanches can penetrate even deep layers and reach a dangerous size. Distinct weak layers in the old snowpack necessitate defensive route selection. Isolated whumpfing sounds can indicate the danger.

Weakly bonded old snow in particular on steep shady slopes. This applies in particular in little used terrain, as well as in areas where the snow cover is rather shallow above the tree line. Distinct weak layers in the upper part of the snowpack can be released in isolated cases even by individual winter sport participants in particular on steep shady slopes. Avalanches can penetrate even deep layers and reach a dangerous size. Distinct weak layers in the old snowpack necessitate defensive route selection. Isolated whumpfing sounds can indicate the danger.

Snowpack

dp.1: deep persistent weak layer

The old snowpack will be prone to triggering in some places. This applies in particular on steep shady slopes above approximately 2000 m. Towards its surface, the snowpack is unfavourably layered and its surface consists of loosely bonded snow lying on a melt-freeze crust that is barely capable of bearing a load. Towards its base, the snowpack is faceted and weak. Remotely triggered avalanches are possible in isolated cases. Reports filed by observers and field observations confirm the unfavourable bonding of the snowpack on steep shady slopes. The meteorological conditions will foster a substantial weakening of the near-surface layers.
The snowpack will be prone to triggering in the northeast and in the northwest.

Tendency

The avalanche danger will persist.


Danger level

2600m
Avalanche Problem
Persistent weak layer
2600m


Snowpack

Tendency


Danger level

2400m
Avalanche Problem
Wind slab
2400m
Wet snow


Thus far only a little snow is lying. Low danger will prevail.

From a snow sport perspective, in most cases insufficient snow is lying. Above approximately 1500 m there are 10 to 20 cm of snow. Above approximately 2000 m there are 20 to 30 cm of snow, and even more in some localities. The wind was strong at times in some localities. In particular in gullies and bowls and behind abrupt changes in the terrain wind slabs formed, especially above approximately 1800 m. At low and intermediate altitudes a low danger will prevail. At high altitudes and in high Alpine regions the avalanche prone locations are more prevalent and larger.

Snowpack

The Avalanche Warning Service currently has only a small amount of information that has been collected in the field. On very steep slopes and adjacent to ridgelines and in gullies and bowls the avalanche danger is a little higher. The snowpack will be generally stable. It is not distinctly layered. As a consequence of highly fluctuating temperatures, solar radiation the snowpack consolidated during the last few days. The mostly small wind slabs of last week are clearly recognisable. These are to be found especially adjacent to ridgelines and in gullies and bowls and generally at high altitudes.

Tendency

Gradual decrease in avalanche danger.


Danger level

treeline
Avalanche Problem
Wind slab
Treeline


The avalanche conditions are very dangerous.

Weakly bonded old snow in particular on steep shady slopes. This applies in particular in little used terrain, as well as in areas where the snow cover is rather shallow above the tree line. Distinct weak layers in the upper part of the snowpack can be released in isolated cases even by individual winter sport participants in particular on steep shady slopes. Avalanches can penetrate even deep layers and reach a dangerous size. Distinct weak layers in the old snowpack necessitate defensive route selection. Isolated whumpfing sounds can indicate the danger.

Snowpack

dp.1: deep persistent weak layer

The old snowpack will be prone to triggering in some places. This applies in particular on steep shady slopes above approximately 2000 m. Towards its surface, the snowpack is unfavourably layered and its surface consists of loosely bonded snow lying on a melt-freeze crust that is barely capable of bearing a load. Towards its base, the snowpack is faceted and weak. Remotely triggered avalanches are possible in isolated cases. Reports filed by observers and field observations confirm the unfavourable bonding of the snowpack on steep shady slopes. The meteorological conditions will foster a substantial weakening of the near-surface layers.
The snowpack will be prone to triggering in the northeast and in the northwest.

Tendency

The avalanche danger will persist.


Danger level



Wind slabs are to be evaluated with care and prudence. As a consequence of warming during the day medium-sized to large natural avalanches are possible above approximately 1500 m.

Snowpack

Tendency