The somewhat older wind slabs are in individual cases still prone to triggering.
The wind slabs of last week can be released in isolated cases on very steep west, north and east facing slopes. The avalanche prone locations are to be found in gullies and bowls, and behind abrupt changes in the terrain above approximately 2400 m. The wind slabs are clearly recognisable to the trained eye. Avalanches can reach medium size in isolated cases. Apart from the danger of being buried, restraint should be exercised as well in view of the danger of avalanches sweeping people along and giving rise to falls.
The Avalanche Warning Service currently has only a small amount of information that has been collected in the field, so that the avalanche danger should be investigated especially thoroughly in the relevant locality.
Snowpack
dp.6: cold, loose snow and wind dp.1: deep persistent weak layer
The snowpack will be subject to considerable local variations. From a snow sport perspective, in most cases insufficient snow is lying. The somewhat older wind slabs are lying on the unfavourable surface of an old snowpack on wind-protected west, north and east facing slopes. They are bonding poorly with the old snowpack especially on shady slopes at elevated altitudes. The high temperatures gave rise to moistening of the snowpack at intermediate altitudes.
Tendency
Wind slabs must be evaluated with care and prudence in particular on very steep shady slopes at elevated altitudes.
Danger level
2400m
Avalanche Problem
Wind slab
2400m
Persistent weak layer
2400m
Wind slabs require caution. Weakly bonded old snow at elevated altitudes.
The wind slabs of last week can be released by a single winter sport participant in isolated cases especially on very steep west, north and east facing slopes. The avalanche prone locations are to be found in particular in gullies and bowls, and behind abrupt changes in the terrain above approximately 2400 m. Avalanches can reach medium size. Apart from the danger of being buried, restraint should be exercised as well in view of the danger of avalanches sweeping people along and giving rise to falls.
In isolated cases avalanches can also be released in near-ground layers, in particular on very steep shady slopes at elevated altitudes. Steep, glaciated terrain must also be critically assessed.
The Avalanche Warning Service currently has only a small amount of information that has been collected in the field, so that the avalanche danger should be investigated especially thoroughly in the relevant locality.
Snowpack
dp.1: deep persistent weak layer dp.6: cold, loose snow and wind
A little snow is lying. The snowpack will be subject to considerable local variations. The somewhat older wind slabs are lying on top of a weakly bonded old snowpack on west, north and east facing slopes at elevated altitudes. Faceted weak layers exist in the bottom section of the old snowpack in shady places that are protected from the wind. The high temperatures gave rise to moistening of the snowpack at intermediate altitudes.
Tendency
Weakly bonded old snow requires caution.
Danger level
2200m
Avalanche Problem
Persistent weak layer
2200m
Wind slab
2200m
Weakly bonded old snow is to be evaluated with care and prudence. As a consequence of southerly foehn wind, sometimes avalanche prone wind slabs will form from the middle of the day adjacent to ridgelines.
Weak layers in the old snowpack can be released in some places by individual winter sport participants. The avalanche prone locations are to be found on very steep west, north and east facing slopes above approximately 2200 m. The number and size of avalanche prone locations will increase with altitude. Isolated whumpfing sounds can indicate the danger. Avalanches can reach medium size. In very isolated cases avalanches can also penetrate deep layers. Such avalanche prone locations are to be found on very steep north facing slopes above approximately 2800 m. Especially in the more southerly regions along the main Alpine ridge and in glaciated terrain.
Afternoon: Fresh wind slabs will form adjacent to ridgelines on west, north and east facing slopes, in particular along the border with South Tyrol and in the Silvretta. The wind slabs are only small but prone to triggering.
Snowpack
dp.1: deep persistent weak layer dp.6: cold, loose snow and wind
Towards its surface, the snowpack is fairly homogeneous; its surface consists of loosely bonded snow. Towards its base, the snowpack is faceted and weak. This applies especially on west, north and east facing slopes at elevated altitudes, in particular in shady places that are protected from the wind.
As a consequence of a freshening southerly foehn wind, mostly small wind slabs will form in the afternoon, in particular adjacent to ridgelines and in pass areas along the border with South Tyrol and in the Silvretta.
Tendency
Weak layers in the old snowpack necessitate caution. As a consequence of southerly foehn wind, further wind slabs will form during the course of the night adjacent to ridgelines and in gullies and bowls.
Danger level
Wind slabs require caution.
The wind slabs of last week can be released in isolated cases on very steep west, north and east facing slopes. The avalanche prone locations are to be found in particular in gullies and bowls above approximately 2400 m. The mostly small wind slabs are clearly recognisable to the trained eye. Restraint should be exercised because avalanches can sweep people along and give rise to falls.
The Avalanche Warning Service currently has only a small amount of information that has been collected in the field, so that the avalanche danger should be investigated especially thoroughly in the relevant locality.
Snowpack
dp.6: cold, loose snow and wind
From a snow sport perspective, in most cases insufficient snow is lying. The snowpack will be subject to considerable local variations. Somewhat older wind slabs are lying on top of a weakly bonded old snowpack especially on steep shady slopes. The high temperatures gave rise to moistening of the snowpack at intermediate altitudes.
Tendency
From a snow sport perspective, in most cases insufficient snow is lying. Individual avalanche prone locations are to be found on extremely steep shady slopes at elevated altitudes.
Danger level
2400m
Avalanche Problem
Gliding snow
2400m
On steep grassy slopes individual gliding avalanches are possible. Individual avalanche prone locations for dry avalanches are to be found on very steep shady slopes at elevated altitudes.
On steep grassy slopes individual gliding avalanches are possible, especially on sunny slopes below approximately 2400 m. Caution is to be exercised in areas with glide cracks.
Weak layers in the lower part of the snowpack can be released in very isolated cases on very steep shady slopes. Such avalanche prone locations are to be found in places that are protected from the wind above approximately 2200 m. These avalanche prone locations are very rare but are difficult to recognise.
Snowpack
dp.2: gliding snow dp.1: deep persistent weak layer
Some snow will fall. The snowpack will be in most cases well bonded. Isolated avalanche prone weak layers exist in the old snowpack on shady slopes. This applies in particular in places that are protected from the wind at elevated altitudes.
Tendency
Slight increase in avalanche danger towards the evening. As a consequence of southerly foehn wind, sometimes avalanche prone wind slabs will form during the course of the night adjacent to ridgelines and in gullies and bowls.
Danger level
Low avalanche danger will prevail.
Avalanches can in very isolated cases be released, but they will be small in most cases. This applies especially on very steep shady slopes at elevated altitudes. The Avalanche Warning Service currently has only a small amount of information that has been collected in the field, so that the avalanche danger should be investigated especially thoroughly in the relevant locality.
Snowpack
From a snow sport perspective, insufficient snow is lying.
