Middle Lys Valley

Gradual increase in danger of dry and moist avalanches as the precipitation becomes more intense. The current avalanche situation calls for careful route selection.

Gradual increase in danger of dry and moist avalanches as the precipitation becomes more intense. The current avalanche situation calls for careful route selection.

As a consequence of new snow and a sometimes strong wind from southerly directions, sometimes large wind slabs formed in the last two days adjacent to ridgelines and in pass areas as well as above the tree line. Here they will increase in size additionally until Saturday. They can be released easily or naturally in all aspects. During the day: The natural activity of avalanches will gradually increase. The avalanches can be released in the new snow and wind slab layers and reach large size in some cases. As a consequence of the rain moist and wet avalanches are possible. Avalanches can reach valley bottoms and in some places endanger exposed transportation routes.

25 to 40 cm of snow, and up to 60 cm in some localities, has fallen since Tuesday above approximately 2000 m. This applies in particular along the border with Switzerland. Since Thursday the wind has been strong to storm force at times. The southerly wind has transported the new snow significantly. Saturday: Above approximately 2000 m more snow will fall. This applies in particular in the afternoon. The rain will give rise in the afternoon to a loss of strength within the snowpack below approximately 2300 m. In some places new snow and wind slabs are lying on soft layers. The upper section of the snowpack is unfavourably layered. The old snowpack is favourably layered.

Dry and moist avalanches are to be expected as the precipitation becomes more intense. The avalanches can reach the valleys and in some places endanger transportation routes that are exposed.