Bulletin d’avalanche

Pollein and Saint-Marcel

Regione Valle d'Aosta
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Danger d’avalanche

Above 2,200 m
3 · Marqué
Below 2,200 m
2 · Modéré
Périmé — ce bulletin a expiré 2 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

New snow and wind slabs represent the main danger.

Problèmes avalancheux

  • Wind slab

    • Above 2,200 m
    Taille
    2

    Stability: very poor · Frequency: some

  • New snow

    • Above 2,200 m
    Taille
    2

    Stability: very poor · Frequency: few

  • Wind slab

    • 1,800 m–2,200 m
    Taille
    2

    Stability: very poor · Frequency: few

Avalanche Activity

New snow and wind slabs represent the main danger.

As a consequence of new snow and a strong wind, further wind slabs will form in the course of the day in particular in gullies and bowls. In particular on wind-loaded slopes the avalanche prone locations will become more prevalent as the day progresses. The new snow and wind slabs of the last three days are lying on top of a weakly bonded old snowpack above approximately 2000 m. The avalanches can be triggered in deep layers of the snowpack and reach large size in isolated cases. Backcountry touring calls for experience in the assessment of avalanche danger.

Snowpack Structure

5 to 25 cm of snow, and even more in some localities, will fall on Monday above approximately 2000 m. Over a wide area 10 to 30 cm of snow has fallen since Thursday above approximately 2000 m. In all aspects snow depths vary greatly above approximately 2200 m, depending on the infuence of the wind. Adjacent to ridgelines and in pass areas above approximately 2200 m hardly any snow is lying. Shady slopes: The snowpack consists of faceted crystals.

Tendency

The avalanche danger will decrease gradually, but only during the night.

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

Régions couvertes