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Attention winter sports enthusiasts: Due to foehn impact, fresh snowdrifts being generated: considerable danger at high altitude
Attention winter sports enthusiasts: Due to foehn impact, fresh snowdrifts being generated: considerable danger at high altitude
At high altitudes the fresh snow and freshly generated snowdrift accumulations are prone to triggering. One person an trigger small-to-medium avalanches. Older, covered snowdrift masses are easily triggered, esp. by large additional loading. Such danger zones are getting covered by fresh snow, are thus hard to recognize. Glide-snow avalanches can trigger at any time of day or night and in isolated cases reach medium size. Caution below glide cracks. In very steep terrain, slides and small loose-snow avalanches are possible.
The latest round of fresh snow lies deposited atop a largely wet snowpack, it is well bonded with the old snowpack. In ridgeline terran and above the treeline, small snowdrift accumulations have been generated, often lie deposited atop surface hoar or soft layers. Warm ground and the wet snowpack base reinforce the gliding movements of the entire snowpack. At low altitudes the snowfall was deposted on bare ground.
Saturday daytime: Quite sunny with intermittent cloudbanks. In the Silvretta the peaks may be shrouded in fog. At 2000 m: -4 to +1 degree. Brisk SW winds in foehn zones and high-alpine regions.
On Sunday, widespread cloud cover, hardly any sunshine, strong-to-stormy SW winds. In the southern regions, minor snowfall. Winds will transport the snow further, generate new drifts. Avalanche danger levels are not expected to change significantly.
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)