Bulletin d’avalanche

Pongau Grass Mountains

LWD Salzburg
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Danger d’avalanche

Above treeline
3 · Marqué
Below treeline
1 · Faible
Périmé — ce bulletin a expiré 6 months ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Fresh and snow-covered wind slabs are prone to triggering

Problèmes avalancheux

  • Wind slab

    • Above treeline
  • Persistent weak layers

    • Above 2,000 m

Avalanche Activity

Fresh and snow-covered wind slabs are prone to triggering

The avalanche risk is considerable above the tree line and low below. In north-west to north to south-facing slopes, avalanches can easily be triggered by individuals in some places. Above 2000 metres, slab avalanches are still possible in persistent weak layers in a few places. Occasionally, avalanches can reach medium size. Danger areas are located at the transition from little to more snow and generally next to blown-off areas as well as in the entrance areas to gullies and bowls filled with wind slabs. Caution should also be exercised at the edge of forests and in forest aisles. Cracks when stepping on the snowpack indicate danger. Caution in the area of terrain traps.

Snowpack Structure

Another 10 to 25 cm of new fallen snow, even more in places. This, and the snow of the past few days, is being transported extensively and is very prone to triggering. Older snowdrift accumulations will be covered with snow. On shady slopes protected from the wind above around 2000 metres, surface hoar has also been covered with snow in places. At high altitudes, especially in northern and eastern aspects, bonded snow overlays a weak old snowpack of faceted crystals and deep frost.

Weather Forecast

It will be cloudy with snow showers during the night. The amount of new snow will be 5 to 10 cm, with the most snow falling in the northern Alps. The wind will blow briskly from westerly directions with gusts of around 60 kilometres per hour. The wind may reach the valleys at times. Visibility will be poor on Tuesday. Clouds and fog will dominate and it will snow, sometimes heavily and for longer periods. During the day it will snow a further 10 cm to 20 cm, with snowfall levels around 600 metres. The wind will continue to blow briskly to strongly from westerly directions. Around -8 degrees at 2000 metres.

Tendency

As the snowfall continues, snowdrift accumulations grow.

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

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