Middle Lys Valley

Wind slabs represent the main danger.

Wind slabs represent the main danger.

The wind slabs of the last few days remain in some cases prone to triggering in particular on shady slopes. Especially adjacent to ridgelines and in gullies and bowls extremely steep terrain: The wind slabs can be released by a single winter sport participant in some cases. The backcountry touring conditions are generally favourable. Wind slabs require caution.

On Sunday, at an altitude of around 1,500 metres, 50 to 100 cm of snow fell widely across the eastern and south-eastern parts of the region, and 30 to 40 cm of snow fell across the rest of the area. The weather conditions facilitated a substantial settling of the snowpack. The surface of the snowpack will freeze to form a strong crust. Sunshine and high temperatures will give rise from the middle of the day to slight softening of the snowpack on very steep sunny slopes below approximately 2000 m. Especially adjacent to ridgelines in all aspects: The sometimes strong wind has transported the new snow. Here snow depths vary greatly, depending on the infuence of the wind. Weak layers exist in the snowpack in particular on steep shady slopes.

Over a wide area 10 to 20 cm of snow, and even more in some localities, will fall on Sunday. Especially in the SE areas bordering Piedmont. The wind will be moderate to strong adjacent to ridgelines. As a consequence of new snow and wind the avalanche prone locations will become more prevalent from the late morning. In addition sometimes avalanche prone wind slabs will form.