Bulletin d’avalanche

Pre Alps

LWD Vorarlberg
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Danger d’avalanche

Above 2,200 m
1 · Faible
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

Main danger: wet-snow/glide-snow avalanches

Problèmes avalancheux

  • Wet snow

    • Toutes altitudes
  • Gliding snow

    • Toutes altitudes

Avalanche Activity

Main danger: wet-snow/glide-snow avalanches

Small-to-medium glide-snow avalanches are still possible. Caution urged below glide cracks. In very steep terrain, small loose wet-snow avalanches can be expected, these can also be triggered by 1 person in steep terrain. Danger of being swept along and being forced to take a fall should be taken into consideration.

Snowpack Structure

At low and intermediate altitudes the snowpack is thoroughly wet down to the ground. Clouds passing through will hamper nocturnal longwave outgoing radiation, a crust capable of bearing loads cannot form easily. Warmth is making the snowpack weaker, esp. in wind-protected terrain. Warm ground and the wet snowpack base reinforce the gliding movements of the entire snowpack. Very little snow on the ground below 1400 m.

Weather Forecast

Nocturnal hours: Foehn wind will intensify in the classic valleys, mild. Sunday daytime: Foehn storm in the mountains. Barrier cloud buildup is possible in the Silvretta. At 2000 m: -4 to 0 degrees. Strong to stormy SW winds.

Tendency

Due to foehn storm on Sunday, fresh snowdrift accumulations will be generated. Avalanche danger will increase. Glide-snow avalanches are still possible.

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

Régions couvertes