Persistent weak layers
- Above 2,000 m
Still a highly unfavorable snowpack - caution urged towards fresh snowdrifts
Still a highly unfavorable snowpack - caution urged towards fresh snowdrifts
Small freshly generated snowdrift accumulations can still be triggered. Marked weak layers in the old snowpack can be triggered by one single winter sports enthusiast, particularly on steep, little skied on slopes. The danger zones are not visible. Whumpf noises and fractures when treading on the surface are alarm signals. Activities in backcountry demand careful evaluation of the terrrain and assessment of the dangers.
A small amount of fresh snow and drifts lie deposited on top of an often melt-freeze encrusted snowpack surface, otherwise atop surface hoar. Especially on steep shady slopes, the often unfavorable base and intermediate layers of the old snowpack have persisted. In zones with rain impact the snowpack is temporarily weakened.
Nocturnal precipitation will slacken off. Wednesday will be instable and very windy, with limited visibility and intermittent snowfall above 1500m. Temperature at 2000m: -1 degree; at 3000m: -8 degrees. Strong to stormy westerly winds at high altitudes.
As a result of further fresh snowfall and wind, avalanche danger will increase somewhat. Triggerings in the old snow are still possible.
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)