Bulletin d’avalanche

Lechquellen Mountains

LWD Vorarlberg
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Danger d’avalanche

Above 2,000 m
2 · Modéré
Below 2,000 m
1 · Faible
Périmé — ce bulletin a expiré 2 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Generally favorable conditions, moderate avalanche danger

Problèmes avalancheux

  • Wind slab

    • Above 2,000 m
    Taille
    2

    Stability: poor · Frequency: some

Avalanche Activity

Generally favorable conditions, moderate avalanche danger

Small-area fresh and older trigger-sensitive snowdrift accumulations are the main danger. Danger zones occur in wind-loaded steep terrain, in gullies and bowls, and behind protruberances in the landscape. Size and frequency of danger zones tend to increase with ascending altitude. In addition, on steep shady slopes at high altitudes and in transitions from shallow to deep snow, isolated slab avalanches can be triggered by large additional loading. A cautious route selection is advised. Small-to-mediium glide-snow avalanches are possible only in isolated cases. Caution urged below glide cracks.

Snowpack Structure

The lastest round of fresh snowfall has been deposited as loose-snow following the lower temperatures atop a well consolidated, often encrusted old snowpack surface, but fresh drifts tend to be often poorly bonded with the old snowpack surface with ascending altitude, sometimes will buried layers of graupel. More deeply embedded layers in the old snowpack are hardly prone to triggering. At most, where the snow is shallow and on very steep shady slopes.

Weather Forecast

Nocturnal skies will be cold and clear. Monday will be brilliantly sunny and very cold. At 2000m: -14 to -6 degrees. Icy-cold and strong-velocity NE winds.

Tendency

No significant change expected, caution urged towards high altitude snowdrifts

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

Régions couvertes