Weakly bonded old snow represents the main danger.
Avalanches can be released in the old snowpack and reach large size. This applies even in case of a single winter sport participant. The avalanche prone locations are to be found especially on west, north and east facing slopes above approximately 2000 m and in all aspects at elevated altitudes. Caution is to be exercised in particular at transitions from a shallow to a deep snowpack. Whumpfing sounds can indicate the danger. Remotely triggered avalanches are possible.
As a consequence of warming during the day and solar radiation only isolated mostly small wet avalanches are possible below approximately 2200 m. Many starting zones have released the snow.
Snowpack
dp.1: deep persistent weak layer dp.10: springtime scenario
Shady slopes: Distinct weak layers exist in the old snowpack in particular on west, north and east facing slopes.
Outgoing longwave radiation during the night will be good. The surface of the snowpack will freeze to form a strong crust. The weather conditions as the day progresses will give rise to softening of the snowpack in particular on very steep sunny slopes.
Tendency
Weakly bonded old snow requires caution. Single winter sport participants can release avalanches as before.
Increase in danger of wet avalanches as a consequence of warming during the day and solar radiation.
Danger level
2000m
Avalanche Problem
Persistent weak layer
2000m
Weakly bonded old snow requires caution.
Distinct weak layers exist in the bottom section of the snowpack in particular above approximately 2000 m. Single winter sport participants can release avalanches in isolated cases. These can reach large size. In particular shady slopes are dangerous.
Outgoing longwave radiation during the night will be good over a wide area. As a consequence of warming during the day and solar radiation individual mostly small wet loose snow avalanches are possible below approximately 2200 m.
Snowpack
dp.1: deep persistent weak layer dp.10: springtime scenario
The snowpack remains unstable in some places. Avalanche prone weak layers exist in the bottom section of the snowpack on shady slopes.
The surface of the snowpack will freeze to form a strong crust and will soften during the day.
Tendency
Weakly bonded old snow requires caution. Increase in danger of wet avalanches as a consequence of warming during the day and solar radiation.
Danger level
2000m
Avalanche Problem
Persistent weak layer
2000m
Weakly bonded old snow requires caution.
Distinct weak layers exist in the bottom section of the snowpack in particular above approximately 2000 m. Winter sport participants can release avalanches in isolated cases. These can reach large size, especially on west, north and east facing slopes. Individual avalanche prone locations are to be found also on southeast, south and southwest facing slopes above 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. Remotely triggered avalanches are possible.
Outgoing longwave radiation during the night will be good over a wide area. As a consequence of warming during the day and solar radiation individual mostly small wet loose snow avalanches are possible below approximately 2200 m.
In addition gliding avalanches are possible. This applies especially on cut and grassy slopes below approximately 2400 m.
Snowpack
dp.7: snow-poor zones in snow-rich surrounding dp.10: springtime scenario
The snowpack remains prone to triggering. Avalanche prone weak layers exist in the bottom section of the snowpack on west, north and east facing slopes.
The surface of the snowpack will freeze to form a strong crust and will soften during the day.
Tendency
Weakly bonded old snow requires caution. Increase in danger of wet avalanches as a consequence of warming during the day and solar radiation.
Danger level
2000m
Avalanche Problem
Persistent weak layer
2000m
Weakly bonded old snow requires caution.
Avalanches can in some cases be released in the old snowpack and reach quite a large size on west, north and east facing slopes. This applies even in case of a single winter sport participant in some cases. The avalanche prone locations are to be found in particular above approximately 2000 m. Caution is to be exercised in particular at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example.
Only isolated mostly small wet avalanches are possible below approximately 2200 m. Many starting zones have released the snow.
Snowpack
dp.1: deep persistent weak layer dp.10: springtime scenario
Shady slopes: Distinct weak layers exist in the old snowpack in particular on west, north and east facing slopes. This applies especially above approximately 2000 m.
Outgoing longwave radiation during the night will be good. The surface of the snowpack will freeze to form a strong crust. The weather conditions as the day progresses will give rise to softening of the snowpack in particular on very steep sunny slopes.
Tendency
Weakly bonded old snow requires caution. Slight increase in danger of wet avalanches as a consequence of warming during the day and solar radiation.
