Bulletin d’avalanche

Upper Passeier Valley

LWD Südtirol
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Danger d’avalanche

Above treeline
3 · Marqué
Below treeline
1 · Faible
Périmé — ce bulletin a expiré 7 months ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

The conditions are sometimes precarious for backcountry touring.

Problèmes avalancheux

  • Persistent weak layers

    • Above treeline
    Taille
    2

    Stability: very poor · Frequency: many

Avalanche Activity

Outside marked and open pistes a precarious avalanche situation will prevail.

The fresh snow as well as the widespread wind slabs are lying on top of a weakly bonded old snowpack in particular on west, north and east facing slopes above the tree line, in isolated cases also in areas close to the tree line. Avalanches can be released easily and reach medium size. Remotely triggered avalanches are possible. The avalanche prone locations are widespread and are barely recognisable. The number and size of avalanche prone locations will increase with altitude. Caution is to be exercised in gullies and bowls, and behind abrupt changes in the terrain. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack and fresh avalanches serve as an alarm indicating the danger. Field observations and avalanches triggered by explosives confirm the unfavourable bonding of the snowpack. Caution and restraint are recommended.

Snowpack Structure

The new snow and wind slabs are lying on top of a weakly bonded old snowpack. Distinct weak layers exist in the old snowpack. This applies especially on west, north and east facing slopes.

Tendency

Avalanches can as before be released, even by a single winter sport participant. The snowpack remains prone to triggering.

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

Régions couvertes