Wind slab
- Above 2,200 m
- Dimensione
- 2
Stability: poor · Frequency: few
Generally favorable conditions, low-to-moderate avalanche danger
Stability: poor · Frequency: few
Generally favorable conditions, low-to-moderate avalanche danger
Small-area fresh and older trigger-sensitive snowdrift accumulations are the main danger. Danger zones occur in wind-loaded steep terrain, in gullies and bowls, and behind protruberances in the landscape. Size and frequency of danger zones tend to increase with ascending altitude. In addition, on steep shady slopes at high altitudes and in transitions from shallow to deep snow, isolated slab avalanches can be triggered by large additional loading. A cautious route selection is advised. Small-to-mediium glide-snow avalanches are possible only in isolated cases. Caution urged below glide cracks.
The uppermost snowpack layers are generally still loose (except in wind-impacted terrain). In high-altitude wind-impacted zones and ridgelines, small fresh snowdrift accumulations have been generated. Some older drifts are now blanketed and layers of graupel embedded. More deeply embedded layers inside the snowpack are unlikely to trigger, at most where the snow is shallow and on very steep shady slopes.
In the latter part of the night, clouds will move in. On Wednesday, limited visibility extending to over 2000m especially during the morning hours, some light snowfall is possible. During the afternoon, clouds will tend to disperse, especially in the southern mountain massifs and in high-alpine regions. At 2000m: dropping to -6 degrees. Brisk to strong N/NE winds at high altitudes.
Avalanche danger levels to recede further. At high altitudes, caution urged towards small snowdrift accumulations.
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)