Bulletin d’avalanche

Upper Passeier Valley

LWD Südtirol
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Danger d’avalanche

Above treeline
2 · Modéré
Below treeline
1 · Faible
Périmé — ce bulletin a expiré 8 months ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Fresh wind slabs represent the main danger.

Problèmes avalancheux

  • Wind slab

    • Above treeline
    Taille
    2

    Stability: poor · Frequency: few

  • Persistent weak layers

    • Above 2,600 m
    Taille
    2

    Stability: poor · Frequency: few

Snowpack Structure

In some regions up to 15 cm of snow, and even more in some localities, fell on Wednesday. The wind will be moderate. The fresh wind slabs are lying on the unfavourable surface of an old snowpack on wind-protected shady slopes. The old snowpack will be subject to considerable local variations.

Avalanche Activity

Fresh wind slabs represent the main danger.

As a consequence of new snow and a strong wind from easterly directions, wind slabs formed on Wednesday in gullies and bowls and behind abrupt changes in the terrain. These can in some cases be released, even by a single winter sport participant, but they will be small in most cases. Caution is to be exercised in particular on shady slopes above the tree line in the regions exposed to heavier precipitation. Avalanches can in isolated cases penetrate deep layers and reach medium size, especially at elevated altitudes. In isolated cases avalanches can be triggered in the weakly bonded old snow. Such avalanche prone locations are to be found in particular on extremely steep shady slopes above approximately 2600 m.

Tendency

The conditions will foster a gradual stabilisation of the snow drift accumulations.

Bulletin data: Avalanche Warning Service South Tyrol, avalanche.report (CC BY 4.0)

Régions couvertes