Danger level
| treeline
|
Avalanche Problem
| Wind-drifted snow |
| | | |
| Persistent weak layer |
| | | |
Wind slabs and weakly bonded old snow represent the main danger.
The fresh and older wind slabs are to be evaluated with care and prudence, in particular adjacent to ridgelines and in gullies and bowls above approximately 2200 m. The fresh and somewhat older wind slabs are covered with new snow in some cases and therefore difficult to recognise.
Weak layers in the old snowpack can be released by individual winter sport participants, in particular in areas where the snow cover is rather shallow, as well as at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example, caution is to be exercised in particular on steep shady slopes above the tree line, as well as on steep sunny slopes above approximately 2500 m. In very isolated cases avalanches are large.
On steep grassy slopes gliding avalanches are possible, in particular medium-sized ones, especially on very steep sunny slopes below approximately 2500 m.
The current avalanche situation calls for experience in the assessment of avalanche danger and careful route selection.
Snowpack
dp.1: deep persistent weak layer
dp.6: cold, loose snow and wind
Towards its surface, the snowpack is fairly homogeneous and has a loosely bonded surface. In the last few days avalanche prone wind slabs formed above the tree line. As a consequence of the southwesterly wind, the snow drift accumulations have increased in size on Friday, in particular on near-ridge shady slopes.
The old snowpack will be weakly bonded in some places. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack can indicate the danger.
Tendency
The avalanche danger will persist.
Danger level
| treeline
|
Avalanche Problem
| Wind-drifted snow |
| | | |
| Gliding snow |
| | | |
Wind slabs require caution. Areas with glide cracks are to be avoided.
The wind slabs must be evaluated with care and prudence in all aspects above the tree line. The fresh wind slabs are rather small but can be released easily.
On very steep grassy slopes and on sunny slopes gliding avalanches are possible, in particular medium-sized ones. Exposed parts of transportation routes can be endangered in particular in the regions with a lot of snow. Areas with glide cracks are to be avoided.
In very isolated cases avalanches can be triggered in deep layers of the snowpack and reach very large size. This applies in case of releases originating from very steep starting zones at high altitudes and in high Alpine regions that have retained the snow thus far, especially at transitions from a shallow to a deep snowpack. This applies in particular in case of a large load.
Snowpack
dp.2: gliding snow
dp.6: cold, loose snow and wind
As a consequence of the moderate to strong southwesterly wind, fresh snow drift accumulations formed on Friday, in particular on near-ridge shady slopes. In some cases the various wind slabs have bonded poorly together. This applies at high altitudes and in high Alpine regions. Towards its surface, the snowpack is soft and its surface consists of surface hoar, especially in areas close to the tree line. The fresh wind slabs will be deposited on surface hoar in some places. Faceted weak layers exist deep in the old snowpack in particular at high altitudes and in high Alpine regions. Towards its base, the snowpack is moist, in particular at low and intermediate altitudes.
Tendency
The weather conditions will foster a gradual change towards better conditions. Caution is to be exercised in areas with glide cracks.
Danger level
| 2000m
|
Avalanche Problem
Fresh wind slabs require caution.
The fresh and older wind slabs represent the main danger. They can be released by a single winter sport participant in some cases in particular on northwest to north to northeast facing aspects at high altitude. They are mostly small.
Snowpack
dp.6: cold, loose snow and wind
In the last few days sometimes avalanche prone wind slabs formed at high altitude. The old snowpack is weak in some cases, especially on steep shady slopes at high altitude. At low and intermediate altitudes hardly any snow is lying. The snowpack is soft and its surface consists of surface hoar, in particular in areas close to the tree line. The fresh wind slabs are lying on surface hoar in some places.
Tendency
The avalanche danger will persist.
Danger level
| 2000m
|
Avalanche Problem
Fresh wind slabs require caution.
The fresh and older wind slabs represent the main danger. They can be released by a single winter sport participant in some cases in particular on northwest to north to southeast facing aspects at high altitude. They are mostly small.
Snowpack
dp.6: cold, loose snow and wind
In the last few days sometimes avalanche prone wind slabs formed at high altitude, especially on steep shady slopes at high altitude. At low and intermediate altitudes hardly any snow is lying.
Tendency
Low, level 1.