New snow
- Above treeline
- Dimensione
- 3
Stability: very poor · Frequency: some
Fresh snow and fresh drifts are prone to triggering
Stability: very poor · Frequency: some
Stability: poor · Frequency: some
Stability: very poor · Frequency: few
Fresh snow and fresh drifts are prone to triggering
Above the treeline avalanche danger is considerable, below that altitude danger is moderate. Danger zones occur behind protruberances in the terrain and on wind-loaded steep slopes. Frequency and magnitude tend to increase with ascending altitude. Whumpf noises and glide cracks when you tread upon the snowpack are signals of danger. Avalanches can be triggered even by the weight of one sole skier. In zones where snowfall has been heavy on steep grassy slopes and hillsides, increasingly frequent small-to-mediuim glide-snow avalanches are possible. Due to solar radiation loose-snow avalanches can be expected in rocky terrain.
The large amounts of fresh fallen snow and drifts, particularly at high altitudes, are poorly bonded with the old snowpack, making them prone to triggering. In the upper part of the snow layering there are weak layers evident (blanketed graupel / inside the latest snowdrift layers).
NIghttime skies will be dry, little cloud, very cold. On Wednesday, sunshine from the start, often cloudless skies. Below 1000m, some fogbanks could prove persistent in the morning. During the daytime, temperatures will rise measurably. At 2000m: -8 to -1 degree. Strong NE winds at high altitudes.
Avalanche danger levels will slowly diminish
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)