Avalanche forecast

Upper Susa and Chisone Valleys

Arpa Piemonte
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Avalanche danger

Above 2,200 m
3 · Considerable
Below 2,200 m
2 · Moderate
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Out of date — this forecast expired last year. You’re viewing past conditions, not the current bulletin.

Highlights

Old wind slabs in particular on steep shady slopes. Weakly bonded old snow at intermediate and high altitudes.

Avalanche problems

  • Wind slab

    • Above 2,200 m
    Size
    3

    Stability: poor · Frequency: some

  • Persistent weak layers

    • Above 2,200 m
    Size
    3

    Stability: poor · Frequency: few

  • New snow

    • All elevations
    Size
    2

    Stability: poor · Frequency: some

Avalanche Activity

Old wind slabs in particular on steep shady slopes. Weakly bonded old snow at intermediate and high altitudes.

Above approximately 1300 m snow will fall until Sunday. As a consequence of the snowfall the prevalence and size of the avalanche prone locations will increase. The new snow-covered wind slabs will become increasingly prone to triggering in particular on steep northwest, north and northeast facing slopes above approximately 1900 m. On steep shady slopes the avalanches can be released in deep layers of the snowpack and reach large size in some cases, especially in gullies and bowls, and behind abrupt changes in the terrain. Avalanches can in some places be released by small loads and reach medium size.

Snowpack Structure

10 to 25 cm of snow, and even more in some localities, will fall until Saturday above approximately 1500 m. Faceted weak layers exist in the bottom section of the snowpack on shady slopes. Especially sunny slopes as well as low and intermediate altitudes: The upper section of the snowpack is largely stable and its surface has a crust that is strong in many cases.

Tendency

As a consequence of the new snow the avalanche prone locations will become more prevalent during the night.

Bulletin data: Arpa Piemonte (via EAWS / avalanche.report)

Regions covered