Wind slab
- Above 1,800 m
Daytime rise in avalanche danger due to fresh snow and wind
Daytime rise in avalanche danger due to fresh snow and wind
The fresh snow will be transported by northerly winds, generating mostly small-sized trigger-sensitive snowdrift accumulations at high altitudes, esp. on shady slopes. Isolated winter sports enthusiasts in these zones can trigger small slab avalanches. Apart from the danger of being buried in snow masses, the risks of being swept along and forced to take a fall require adequate caution. The danger of small, in isolated cases medium-sized glide-snow avalanches persists. At intermediate altitudes the old snowpack is thoroughly wet and mostly small wet-snow avalanches are possible.
In the Silvretta and Rätikon up to 15cm of fresh snow anticipated, in the Allgau Alps up to 20cm, in the Lechquellen, Lechtal Alps and Verwall up to 30cm of fresh fallen snow, the snowfall level dropping rapidly from 1700 down to 1300m. The fresh fallen snow will be transported during the course of the day by intensifying northerly winds. At high altitudes the fresh snow and drifts will be deposited atop soft layers particularly on shady slopes and is prone to triggering. The snowpack is moist up to high altitudes and weakened by rainfall. Gliding movements are still possible over smooth ground.
Low-pressure front conditions, compact clouds will dominate all day long, fog and light snowfall, moderate in northern regions. The snowfall level will be at 1300m. At 2000m: -2 degrees. Moderate to brisk northerly winds at high altitudes.
Also on Sunday, brisk NW winds will generate new snowdrifts. Danger of dry-snow avalanches will not change significantly. During the daytime, wet-snow and glide-snow avalanches continue to be possible.
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)