Wind slab
- All elevations
Caution: small fresh drifts, still glide-snow avalanches
Caution: small fresh drifts, still glide-snow avalanches
Avalanche danger is predominantly low, moderate danger above 1600 m. Main problem: small snowdrift accumulations. Danger zones increase in size and frequency with ascending altitude, occurring primarily on wind-loaded steep slopes and in ridgeline terrain. They are often difficult to recognize. A small-to-medium slab avalanche can be triggered by 1 person. At all altitudes in steep terrain and on smooth grass-covered slopes in all aspects, glide-snow avalanches are possible which can reach medium size. Caution in zones below glide cracks.
The large amounts of fresh fallen snow have been able to settle at lower altitudes and bond with the old snowpack. Light winds have transported the fresh snow and led to new snowdrift masses. Wherever they blanket the fresh snow of soft layers or surface hoar, they are prone to triggering. Older snowdrifts are being increasingly blanketed over. At low and intermediate altitudes the base often is moist atop a warm ground, which favours gliding snow. There is currently little data available to the Avalanche Warning Service about the snowpack in various regions.
Nocturnal hours: Snowfall and snow showers will slowly come to an end, clouds will disperse. Thursday: Residual clouds will disperse, sunshine will prevail. In afternoon, a few cloudbanks above summit level. Measurably higher temperatures. At 2000 m: -8 to -1 degree. Light to moderate northwesterly winds.
The avalanche situation is not expected to change significantly.
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)