Bulletin d’avalanche

Pollein and Saint-Marcel

Regione Valle d'Aosta
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Danger d’avalanche

Above 2,600 m
2 · Modéré
Below 2,600 m
1 · Faible
Périmé — ce bulletin a expiré 9 months ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Wind slabs and weakly bonded old snow represent the main danger. As a consequence of highly fluctuating temperatures a favourable avalanche situation will develop during the next few days.

Problèmes avalancheux

  • Wind slab

    • Above 2,600 m
    Taille
    2

    Stability: fair · Frequency: some

  • Persistent weak layers

    • Above 2,400 m
    Taille
    2

    Stability: fair · Frequency: few

Avalanche Activity

Wind slabs and weakly bonded old snow represent the main danger. As a consequence of highly fluctuating temperatures a favourable avalanche situation will develop during the next few days.

The mostly small wind slabs of the last few days can be released by a single winter sport participant in isolated cases at high altitude. In isolated cases the avalanches are medium-sized and can be released by a single winter sport participant, caution is to be exercised in particular on very steep slopes. On very steep south facing slopes and in steep rocky terrain individual moist snow slides are possible as the day progresses, but they will be mostly small. The numerous rocks hidden by the recent snow are the main danger.

Snowpack Structure

In some localities 2 to 10 cm of snow, but less in some localities, has fallen since Sunday above approximately 2000 m. The sleet gave rise in the afternoon to moistening of the snowpack in all aspects below approximately 2300 m. As a consequence of highly fluctuating temperatures a crust will form on the surface during the night. Sunshine and high temperatures will give rise as the day progresses to moistening of the snowpack on very steep south facing slopes at intermediate altitudes. Weak layers exist in the top section of the snowpack. At low and intermediate altitudes from a snow sport perspective, insufficient snow is lying.

Tendency

As a consequence of highly fluctuating temperatures a favourable avalanche situation will develop during the next few days.

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

Régions couvertes