Wind slab
- Above treeline
- Dimensione
- 3
Stability: poor · Frequency: some
Fresh wind slabs require caution. Above approximately 2000 m the avalanche prone locations are prevalent and the danger is level 3 (considerable).
Stability: poor · Frequency: some
Stability: poor · Frequency: some
Fresh wind slabs require caution. Above approximately 2000 m the avalanche prone locations are prevalent and the danger is level 3 (considerable).
Over a wide area over a wide area 20 to 40 cm of snow, and even more in some localities, has fallen above approximately 2200 m. The strong wind has transported some snow. The new snow and wind slabs are lying on the unfavourable surface of an old snowpack in all aspects above approximately 2000 m. Even single backcountry tourers can release avalanches in many places, including medium-sized ones. Small and medium-sized natural avalanches are possible on very steep slopes. The strong wind will transport the new snow and, in some cases, old snow as well. The fresh snow and the sometimes large wind slabs that are forming over a wide area can be released easily, or, in isolated cases naturally. The number and size of avalanche prone locations will increase with altitude. Avalanche prone locations are to be found above the tree line and in areas close to the tree line. Caution is to be exercised in particular adjacent to ridgelines and in gullies and bowls. Mostly avalanches are medium-sized. Avalanche prone locations are to be found in particular in places that are protected from the wind above approximately 2200 m. Experience in the assessment of avalanche danger is required. On steep grassy slopes more small and, in isolated cases, medium-sized gliding avalanches are possible. This applies in particular in the regions with a lot of snow.
Over a wide area 20 to 40 cm of snow, and even more in some localities, has fallen above approximately 2000 m. The sometimes strong wind has transported a lot of snow. The new snow and wind slabs of the last few days are lying on the unfavourable surface of an old snowpack in all aspects above the tree line, in particular in places that are protected from the wind. These weather conditions fostered a weakening of the snowpack in particular on very steep slopes. The snowpack will be subject to considerable local variations. Snow depths vary greatly above the tree line, depending on the infuence of the wind. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack confirm the unfavourable bonding of the snowpack.
Over a wide area 10 to 20 cm of snow will fall on Saturday. As a consequence of new snow and strong wind there will be an increase in the avalanche danger within the current danger level. Wind slabs and weakly bonded old snow require caution.
Bulletin data: Meteotrentino, avalanche.report (CC BY 4.0)