Wind slab
- All elevations
Main danger : fresh and older snowdrift accumulations
Main danger : fresh and older snowdrift accumulations
With ascending altitude the latest snowdrift accumulations in ridgeline terrain, gullies and bowls and behind abrupt discontinuities in the terrain are prone to triggering. Small, occasional medium-sized slab releases are possible in such zones. Danger zones increase in size and spread with ascending altitude. Activities in backcountry demand experience in avalanche danger assessment on-site. In steep rocky terrain the fresh snow can trigger small to medium loose-snow and slab avalanches.
Slightly higher temperatures and less wind will help the snowpack to settle and consolidate. In ridgeline and pass areas, behind abrupt discontinuities in the terrain and in wind-impacted terrain, older snowdrifts occur, often poorly bonded with the old snowpack surface or riddled with weak intermediate layers. In leeward terrain and at low altitudes the fresh snow is still loose, despite partial settling.
Nocturnal hours: only slightly cloudy skies, high fogbanks will have a ceiling at 1000 m at the western and northern rim of Bregenzerwald Massif and Prealps. Wednesday: tenacious fog at intermediate altitudes, above that is sunshine and higher temperatures, only a few high-altitude clouds. At 2000 m: -6 to -1 degree. Moderate E/NE winds.
Low lying cloud in the northern regions. Temperatures will drop a notch. Avalanche danger will diminish.
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)