Wind slab
- Above treeline
Fresh snow and older drifts prone to triggering
Fresh snow and older drifts prone to triggering
Fresh fallen and frequently covered older snowdrift accumulations are easily triggered. Slab avalanchess can be triggered by minimum additional loading and grow to medium-sized releases. Settling noises when treading the snowpack and fractures on the surface can indicate imminent danger. Danger zones occur in wind-loaded steep terrain, behind sharp drops in the landscape, in gullies and bowls.
Widespread 20-30cm of fresh snow is anticipated. Amid intermittently strong winds it will be transported and will generated new snowdrift masses. They are prone to triggering. Fresh snow and drifts often lie deposited atop soft layers of fresh fallen snow from precious days and blanket older drifts. The old snowpack is generally well consolidated and compact.
Wintery conditions with snowfall and wind. Most of the fresh snow will fall in the barrier cloud regions of the Arlberg and Allgau Alps. During daytime hours, some interims without snowfall in sunny windows. The northerly winds will intensify the cold. Temperature at 2000m: from -8 degrees; at 3000m: -16 degrees. Moderately strong northerly winds at high altitude, very gusty.
To start with, no significant change
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)