Lawinenlagebericht

Valsavaranche

Regione Valle d'Aosta
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Lawinengefahr

All elevations
4 · Gross
Veraltet — dieser Lagebericht ist 6 months ago abgelaufen. Du siehst vergangene Verhältnisse, nicht den aktuellen Bericht.

Kernpunkte

The avalanche danger in all regions is within the upper range of danger level 4 (high). A critical avalanche situation will be encountered over a wide area. In particular along the border with France and along the border with Switzerland the avalanche prone locations are more widespread.

Lawinenprobleme

  • New snow

    • Alle Höhenlagen
    Größe
    3

    Stability: very poor · Frequency: many

  • Wind slab

    • Above 2,000 m
    Größe
    4

    Stability: very poor · Frequency: some

Avalanche Activity

The avalanche danger in all regions is within the upper range of danger level 4 (high). A critical avalanche situation will be encountered over a wide area. In particular along the border with France and along the border with Switzerland the avalanche prone locations are more widespread.

Very dangerous avalanche situation with three overlapping avalanche problems: fresh snow, wind-blown snow and persistent weak layers. Large quantities of fresh snow and the wind-drifted snow are lying on top of a weakly bonded old snowpack. Avalanches can in many places be released very easily. As a consequence of new snow and strong wind natural avalanches are to be expected, even large ones. The avalanches can be triggered in deep layers of the snowpack and reach very large size. In the typical avalanche paths the avalanches can reach as far as the valley bottom and endanger transportation routes that are exposed. The emptied starting zones will be replenished as a consequence of snowfall and wind. The conditions are very critical for backcountry touring and other off-piste activities outside marked and open pistes.

Snowpack Structure

Wednesday: 40 to 60 cm of snow, and even more in some localities, fell in the late morning above approximately 1600 m. 40 to 80 cm of snow, and even more in some localities, will fall until Thursday above approximately 2000 m. The weather conditions will give rise to unfavourable bonding of the snowpack. The large quantity of fresh snow and the wind slabs that are forming during the snowfall are bonding poorly with the old snowpack at intermediate and high altitudes.

Tendency

The large quantity of fresh snow as well as the wind slabs that are forming in all aspects represent the main danger. With the end of the intense precipitation, the natural avalanche activity will decrease.

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

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