Distinct weak layers in the old snowpack are treacherous. Fresh wind slabs are to be evaluated with care and prudence.
Distinct weak layers in the old snowpack can still be released by individual winter sport participants in particular on west, north and east facing slopes. This applies in particular in particular above the tree line, and below approximately 2600 m. Caution is to be exercised in particular at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example. Avalanches can reach large size.
As a consequence of new snow and a strong to storm force wind, easily released wind slabs will form in the course of the day above the tree line. The fresh wind slabs are prone to triggering in particular on northwest to north to southeast facing aspects. These are to be bypassed as far as possible.
Snowpack
dp.7: snow-poor zones in snow-rich surrounding dp.6: cold, loose snow and wind
10 to 20 cm of snow will fall until late in the night. The wind will be strong to storm force over a wide area. The strong wind will transport the new snow and, in some cases, old snow as well. The fresh wind slabs are poorly bonded with the old snowpack in particular on shady slopes. The older wind slabs can scarcely be released. Faceted weak layers exist in the centre of the snowpack, especially on west, north and east facing slopes above the tree line, and below approximately 2600 m.
Tendency
As a consequence of new snow and strong wind there will be an additional increase in the avalanche danger.
Danger level
treeline
Avalanche Problem
Wind-drifted snow
Treeline
Persistent weak layer
2200m
Fresh wind slabs are to be evaluated with care and prudence. Weak layers in the old snowpack necessitate caution.
As a consequence of new snow and a strong to storm force wind, avalanche prone wind slabs will form in the course of the day in some places. The rather small wind slabs can be released even by a single winter sport participant in particular on steep shady slopes above the tree line. The avalanche prone locations are to be found in shady places that are protected from the wind and adjacent to ridgelines and in gullies and bowls. At elevated altitudes the avalanche prone locations are a little more prevalent. The wind slabs in steep terrain are to be bypassed as far as possible. By late in the night as the precipitation becomes more intense there will be a gradual increase in the avalanche danger.
In very isolated cases dry avalanches can also be triggered in the old snowpack, especially on very steep shady slopes at transitions from a shallow to a deep snowpack, this applies in particular in case of a large load.
Snowpack
dp.6: cold, loose snow and wind dp.7: snow-poor zones in snow-rich surrounding
10 to 20 cm of snow, and even more in some localities, will fall. The wind will be strong to storm force over a wide area. As a consequence of new snow and northwesterly wind, wind slabs will form in the course of the day in all aspects. The fresh wind slabs are bonding poorly with the old snowpack in particular on wind-protected shady slopes. They are mostly rather small but prone to triggering. Older wind slabs have bonded quite well with the old snowpack. In its middle, the snowpack is faceted and weak. This applies on shady slopes above approximately 2200 m.
Tendency
As a consequence of new snow and strong wind there will be an additional increase in the avalanche danger.
Danger level
2200m
Avalanche Problem
Wind-drifted snow
2200m
Wind slabs are to be evaluated with care and prudence.
As a consequence of a storm force wind, small wind slabs will form in all aspects. These are in some cases prone to triggering in particular on steep northwest, north and east facing slopes. The avalanche prone locations are to be found in particular in steep terrain above approximately 2200 m and in gullies and bowls. The prevalence of these avalanche prone locations will increase with altitude. Single persons can release avalanches in some places. Mostly these are rather small. The somewhat older wind slabs of last week can be released by a single winter sport participant in isolated cases on very steep, rather lightly snow-covered shady slopes, especially at their margins. Fresh and somewhat older wind slabs are to be bypassed in particular in very steep terrain.
Snowpack
dp.6: cold, loose snow and wind
The storm force wind will transport the snow. Above approximately 2200 m snow depths vary greatly, depending on the infuence of the wind. The fresh and older wind slabs are bonding poorly with the old snowpack in particular on shady slopes and generally at elevated altitudes. The old snowpack consists of faceted crystals, especially on shady slopes.
Tendency
As a consequence of a strong to storm force wind, further wind slabs will form.
Danger level
2200m
Avalanche Problem
Wind-drifted snow
2200m
Fresh wind slabs are to be evaluated with care and prudence.
Some fresh snow and the mostly small wind slabs that are being formed by the strong to storm force northwesterly wind are in some cases prone to triggering in particular on steep shady slopes above approximately 2200 m. These can be released even by a single winter sport participant. The avalanche prone locations are to be found in particular in shady places that are protected from the wind and adjacent to ridgelines and in gullies and bowls. At elevated altitudes the avalanche prone locations are a little more prevalent.
In very isolated cases dry avalanches can also be triggered in the old snowpack, especially on very steep shady slopes at transitions from a shallow to a deep snowpack, this applies in particular in case of a large load.
Snowpack
dp.6: cold, loose snow and wind dp.7: snow-poor zones in snow-rich surrounding
Some snow will fall. The wind will be strong to storm force. The fresh wind slabs are bonding poorly with the old snowpack in particular on wind-protected shady slopes. They are mostly rather small but prone to triggering. Older wind slabs have bonded quite well with the old snowpack. In its middle, the snowpack is faceted and weak. This applies on shady slopes above approximately 2200 m.
Tendency
As a consequence of new snow and strong wind there will be an increase in the avalanche danger within the current danger level.
