Valgrisenche

The fresh wind slabs represent the main danger. Backcountry touring and other off-piste activities call for meticulous route selection.

The fresh wind slabs represent the main danger. Backcountry touring and other off-piste activities call for meticulous route selection.

The more recent wind slabs are in some cases prone to triggering. They can be released easily. or in isolated cases naturally, in all aspects above approximately 2500 m. This also applies at a distance from ridgelines. In some cases the dry avalanches can release the moist old snow as well and reach large size in isolated cases. On sunny slopes small to medium-sized moist and wet avalanches are possible below approximately 2600 m.

Outgoing longwave radiation during the night will be quite good. 40 to 70 cm of snow, and even more in some localities, fell on Friday above approximately 2400 m, in particular, along the border with France and along the border with Switzerland. The strong wind has transported the new snow significantly. Since Friday numerous medium-sized and large avalanches occurred naturally. In the last three days on wind-loaded slopes medium-sized avalanches were released. The old snowpack will be moist, also in all aspects below approximately 2800 m. Above the tree line snow depths vary greatly, depending on the infuence of the wind.

The avalanche danger will decrease gradually.