Wind slab
- Above 2,100 m
- Size
- 2
Stability: poor · Frequency: few
At high and high-alpine altitudes, ridgeline snowdrifts demand caution.
Stability: poor · Frequency: few
Stability: very poor · Frequency: few
At high and high-alpine altitudes, ridgeline snowdrifts demand caution.
Avalanche danger as of 2100m is moderate, danger is low below that altitude. Near ridgelines at high and high-alpine altitudes there are shallow drifts behind protruberances in the landscape behind ridges. Generally, large addtional loading is necessary to trigger a small-sized slab avalanche in steep terrain. In steep rocky terrain, due to solar radiation, small loose-snow avalanches can trigger, medium-sized ones in regions where there has been heavy snowfall.
Loosely-packed fresh fallen snow lies deposited on last week’s snowpack surface (of snowdrifts and compacted snow). At high and high-alpine altitudes the NE winds can transport the snow to ridgelines. At high and high-alpine altitudes the September snow has persisted and now serves as a compact base. Transition zones from the September snow to the November snow contain faceted crystals in isolated cases, these could serve as a fracture surface. The snow is distributed highly irregularly, ridges broad and narrow are often completely windblown, and even in other places the fresh fallen snow insufficiently blankets the snow base.
It will be sunny, high-foglike clouds will quickly disperse. Visibility will be generally good. Light NE winds will be blowing, at high-alpine altitudes they can be brisker (reaching peaks of just under 50 km/hr). Milder: at 2000m, -4 degrees in the afternoon, at 3000m -8 degrees.
Danger is expected to gradually recede.
Bulletin data: Avalanche Warning Service Salzburg (CC BY 4.0)