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Heed: fresh snowdrifts - Caution: steep ridgeline terrain
Heed: fresh snowdrifts - Caution: steep ridgeline terrain
Avalanche danger above the treerline is moderate, below that altitude danger is low. Fresh snowdrifts can often be triggered as a slab avalanche even by the weight of one sole skier. Danger zones occur esp. in steep ridgeline terrain on NW/N/SE facing slopes and in wind-loaded gullies and bowls. Frequency and size of danger zones increase with ascending altitude. Above the treeline, avalanches can reach medium size.
Fresh snow and snowdrifts lie deposited atop a well settled (at intermeidate altitudes on a melt-freeze crust), on south-facing slopes often on bare ground. Strong-to-stormy winds transported the fresh snow, generated new drifts, depositing them atop soft layers which are prone to triggering. Inside the snowdrifts themselves there are weak layers.
Nocturnal hours: on Friday night a cold front will move in, bringing moderate precipitation, strong winds, lower tempertures. Snowfall level will descend to the valley floor. Saturday: dense cloud cover, reduced visibility, snowfall will terminate temporarily then begin again at midday. At 2000 m: -6 degrees. Brisk to strong W/NW winds.
With higher temperatures and rainfall, avalanche danger could rise further. Wet avalanches possible at intermediate altitiudes. At high altitudes the drifts are prone to triggering.
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)