Wind slab
- Above treeline
- Size
- 1
Stability: poor · Frequency: some
Generally low avalanche danger, moderate danger at high altitudes
Stability: poor · Frequency: some
Generally low avalanche danger, moderate danger at high altitudes
Avalanche danger above the treeline is moderate, below that altitude danger is low. Small-sized snowdrifts are the main problem. Danger zones (for potentially small-to-medium sized slab avalanches) occur above the treeline in steep ridgeline terrain in all aspects and in wind-loaded gullies and bowls. In addition, on steep grass-covered slopes where there is sufficient snow on the ground, small-sized glide-snow avalanches are possible.
The large amounts of fresh fallen snow and drifts from the most recent bout of precipitation have been able to settle slightly and consolidate. On the shady slopes the fresh snow is still loosely-packed, on the sunny slopes it is soft but bonded. At high altitudes in particular, snowdrift accumulations are often weakly bonded with the old snowpack, making them prone to triggering.
NIghttime skies will be dry, little cloud, and thus, 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.us,
Avalanche danger levels not expected to change significantly
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)