Wind slab
- All elevations
Heed fresh drifts at high altitudes
Thursday: the peaks will be wreathed in fog, snowfall/rainfall in many places, the snowfall level at 1800 m. Most of the fresh snow will fall from Bregenzerwald to the Arlberg region (2-5 cm). Further south, dry spells are possible. Strong winds at high altitudes. At 2000 m: 0 degrees. Brisk to strong W/NW winds.
Heed fresh drifts at high altitudes
Moderate avalanche danger. Fresh drifts are often prone to triggering in shady, wind-protected ridgeline terrain. Such danger zones increase with ascending altitude. Small to medium avalanches are possible especially with large additional loading. In zones where avalanche danger is low, isolated small releases are possible in extremely steep terrain. In steep terrain where there is a melt-freeze crust on the surface, the danger of being forced to take a fall should not be underestimated.
At high altitudes, light winds, up to 10 centimetres of fresh snow, which will be intensively transported in ridgeline and pass areas. The fresh drifts are prone to triggering. They lie deposited atop loose and soft layers or melt-freeze encrusted surfaces. Bonding is only moderate. At high altitudes, esp. on steep shady slopes there are weak layers evident inside the snowpack. These danger zones are not visible to the naked eye. Below 1600 m there is only little snow on the ground; below 1200 m the ground is mostly bare. Reports from outlying terrain are sparse.
An intermediate high will give us a sunny Friday. Winds will slacken off, temperatures rise. Avalanche danger levels are not expected to change significantly.
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)