Bulletin d’avalanche

Valgrisenche

Regione Valle d'Aosta
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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

The weather will be cold. The fresh wind slabs represent the main danger.

Problèmes avalancheux

  • Wind slab

    • Above 2,200 m

Avalanche Activity

The weather will be cold. The fresh wind slabs represent the main danger.

Thursday: In some localities light snowfall to low altitudes. This applies in particular in the regions of the north exposed to the foehn wind as well as along the border with France and along the border with Switzerland. On Wednesday small wind slabs formed adjacent to ridgelines and in gullies and bowls as well as at high altitude. On Thursday these will increase in size additionally. These avalanche prone locations are sometimes covered with new snow and are therefore barely recognisable. They can be released, even by a single winter sport participant, especially on very steep slopes. Even a small avalanche can sweep people along and give rise to falls. Loose snow avalanches are possible as the day progresses, but they can reach medium size in isolated cases. This applies in particular on extremely steep slopes.

Snowpack Structure

Wednesday: At the border to France and along the border with Switzerland 15 to 25 cm of snow fell. The northwesterly wind has transported the new snow. The wind slabs have bonded poorly with the old snowpack. As a consequence of falling temperatures the snowpack consolidated during the last two days. Towards its surface, the snowpack is hard and its surface has a strong melt-freeze crust. Significant decrease in danger of moist and wet avalanches. Above approximately 2300 m a lot of snow is lying.

Tendency

During the day: Light snowfall.

Bulletin data: Regione Autonoma Valle d'Aosta (via EAWS / avalanche.report)

Régions couvertes