Avalanche forecast

Valgrisenche

Regione Valle d'Aosta
View on map

Avalanche danger

All elevations· Morning
2 · Moderate
Above 2,300 m· Afternoon
3 · Considerable
Below 2,300 m· Afternoon
2 · Moderate
Open full map
Out of date — this forecast expired 5 months ago. You’re viewing past conditions, not the current bulletin.

Highlights

Wind slabs represent the main danger. The wind will be strong.

Avalanche problems

  • Wind slab· Morning

    • Above 2,300 m
    Size
    2

    Stability: poor · Frequency: some

  • Wind slab· Morning

    • 1,800 m–2,300 m
    Size
    2

    Stability: poor · Frequency: few

  • Wind slab· Afternoon

    • Above 2,300 m
    Size
    2

    Stability: poor · Frequency: many

  • Wind slab· Afternoon

    • 1,800 m–2,300 m
    Size
    2

    Stability: poor · Frequency: few

Avalanche Activity

Wind slabs represent the main danger. The wind will be strong.

In some localities 5 to 15 cm of snow will fall from midday above approximately 1600 m. The wind will be strong. As a consequence of new snow and a strong wind from northerly directions, further wind slabs will form also in areas not adjacent to ridgelines. In some places the wind slabs will increase in size moderately as the day progresses. Along the border with France and along the border with Switzerland these avalanche prone locations are more prevalent. They will be covered with new snow in some cases and therefore difficult to recognise. The more recent wind slabs can be released, caution is to be exercised at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example. Whumpfing sounds serve as an alarm sign. Especially on wind-loaded slopes the dry avalanches can be released in the various wind slab layers and reach medium size. Backcountry touring calls for caution and restraint.

Snowpack Structure

In some localities 2 to 5 cm of snow, and even more in some localities, fell on Sunday above approximately 2000 m. 20 to 30 cm of snow, but less in some localities, fell on Thursday above approximately 2000 m. The wind was strong to storm force over a wide area. The wind has transported the fresh and old snow significantly. Over a wide area snow depths vary greatly, depending on the infuence of the wind. Towards its surface, the snowpack is hard and its surface has a crust that is strong in many cases, in particular adjacent to ridgelines and in pass areas. Towards its surface, the snowpack is soft and has a loosely bonded surface, especially in places that are protected from the wind. The solar radiation gave rise to settling of the snowpack. On southeast and southwest facing slopes below approximately 2400 m the snow is moist. Weak layers exist in the snowpack in particular on steep shady slopes.

Tendency

The wind will be strong. The avalanche prone locations are to be found on wind-loaded slopes at elevated altitudes.

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

Regions covered