Middle Lys Valley

New snow and wind slabs represent the main danger. Backcountry touring and other off-piste activities call for defensive route selection.

New snow and wind slabs represent the main danger. Backcountry touring and other off-piste activities call for defensive route selection.

As a consequence of new snow and a moderate to strong southeasterly wind, easily released wind slabs will form during the course of the night above approximately 2200 m. The fresh snow as well as the wind slabs that are forming adjacent to ridgelines and in gullies and bowls will be deposited on the unfavourable surface of an old snowpack in particular on shady slopes. The avalanche prone locations are to be found between approximately 2200 and 2800 m. The fresh snow and the wind slabs can be released easily, even by a single winter sport participant,. Small and medium-sized dry avalanches are to be expected from the second half of the night. 20 to 40 cm of snow, and up to 50 cm in some localities, will fall until the early morning above approximately 1400 m. The maximum amounts of fresh snow will be reached in the areas bordering Piedmont. Here the likelihood of avalanches is higher.

Down to 900 m snow will fall until the early morning. During the night the wind will be moderate to strong. Sunny slopes: The surface of the snowpack has frozen to form a strong crust. The new snow and wind slabs will be deposited on a crust on steep sunny slopes. In shady places that are protected from the wind: Towards its surface, the snowpack is dry and has a loosely bonded surface. The new snow and wind slabs will be deposited on the unfavourable surface of an old snowpack on steep shady slopes above approximately 2300 m. In all aspects only a small amount of snow is lying for the time of year. On sunny slopes below approximately 2800 m hardly any snow is lying.

The weather conditions will give rise to increasing consolidation of the snowpack.