Valgrisenche

Wind slabs represent the main danger.

Wind slabs represent the main danger.

As a consequence of a moderate to strong wind from northerly directions, further wind slabs will form in the course of the day at intermediate and high altitudes. The fresh snow and in particular the wind slabs to be found especially in gullies and bowls and behind abrupt changes in the terrain can be released by a single winter sport participant above approximately 2200 m. On extremely steep slopes and at the base of rock walls and behind abrupt changes in the terrain small and medium-sized snow slides and avalanches are possible, in the event of prolonged bright spells in particular. Gliding avalanches can also occur. Areas with glide cracks are to be avoided as far as possible. They are covered with new snow in some cases and therefore difficult to recognise.

15 to 25 cm of snow, and even more in some localities, fell in the last two days above approximately 2000 m, especially along the border with France. The new snow is lying on a crust in particular on sunny slopes below approximately 2600 m. In shady places that are protected from the wind: Towards its surface, the snowpack is dry and has a loosely bonded surface. Snow depths vary greatly above approximately 2200 m, depending on the infuence of the wind. Adjacent to ridgelines and in pass areas and at high altitude a little snow is lying. At low altitude less snow than usual is lying.

The wind will be strong.