Bulletin d’avalanche

Lechquellen Mountains

LWD Vorarlberg
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Danger d’avalanche

Above 2,200 m
2 · Modéré
Below 2,200 m
1 · Faible
Périmé — ce bulletin a expiré 9 months ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Caution urged on steep, shady high-altitude slopes. Beware small fresh snowdrifts.

Problèmes avalancheux

  • Persistent weak layers

    • Above 2,200 m
  • Wind slab

    • Above 2,200 m
  • Gliding snow

    • Toutes altitudes

Avalanche Activity

Caution urged on steep, shady high-altitude slopes. Beware small fresh snowdrifts.

Slab avalanches can be triggered in the old snow in some places by large additional loading. Caution is urged on very steep, shady high altitude slopes. In addition, small-sized snowdrift accumulations occur in ridgeline terrain and behind protruberances in the landscape at increasing frequency with ascending altitude, these drifts are prone to triggering. Small-to-medium sized slab avalanches can be triggered by winter sports enthusiasts. Especially on steep grass-covered slopes, small-sized glide-snow avalanches continue to be possible. Be careful beneath glide cracks.

Snowpack Structure

The fresh fallen snow from the weekend lies deposited on top of an often moist, superficially melt-freeze encrusted old snowpack up to high altitudes. With increasing altitude, particularly in ridgeline and pass zones, as well as behind protruberances in the landscape, small freshly-generated snowdrift accumulations occur. At high altitudes, especially on shady slopes, there are faceted intermediate layers inside the snowpack. These can be triggered in some places. In high altitude ridgeline terrain, surface hoar can form.

Weather Forecast

Above the fog line there will be sunny phases with a few high-altitude cloudbanks. Temperature at 2000m: -1 degree; at 3000m: -7 degrees. High-altitude winds: light to moderate from southerly directions.

Tendency

No significant change in the avalanche situation is anticipated.

Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)

Régions couvertes