Bulletin d’avalanche

Bregenzerwald 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 2 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Caution: freshly generated snowdrift accumulations

Problèmes avalancheux

  • Wind slab

    • Above 2,200 m
  • Gliding snow

    • Toutes altitudes

Avalanche Activity

Caution: freshly generated snowdrift accumulations

Due to brisk W/NW winds, snowdrift accumulations were generated esp. in high-altitude ridgeline and pass areas which are prone to triggering (but small). Danger zones tend to increase in frequency with ascending altitude. Older snowdrift accumulations are often still prone to triggering, can be released by one sole skier and reach medium size. Snowdrift accumulations in steep terrain should be evaluated with great caution. The danger of small, in isolated cases medium-sized glide-snow avalanches is still difficult to assess. Caution urged below glide cracks.

Snowpack Structure

Brisk W/NW winds transported the loose snow over the course of the day. Fresh and older snowdrift accumulations are often prone to triggering. Esp. on N/E facing slopes, the snowdrifts were deposited atop a loosely-packed snowpack surface. Older drifts are stabilizing increasingly. On sunny slopes the fresh snow is already bonded and forming a thin crust.

Weather Forecast

Gray winter skies, initially cloudbanks will disperse, providing room for some sunshine. During the course of the day, high-altitude clouds will move in. At 2000m: -6 to -3 degrees. High altitude moderate westerly winds.

Tendency

Avalanche danger levels will slowly recede. In high-alpine ridgeline and pass areas, brisk NW winds will generate trigger-sensitive snowdrift accumulations.

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

Régions couvertes