Valgrisenche

Wind slabs and wet snow represent the main danger.

Wind slabs and wet snow represent the main danger.

A partly overcast night: The surface of the snowpack will only just freeze. Until the temperature falls more medium-sized moist and wet avalanches are to be expected below approximately 2500 m, especially in case of releases originating from very steep starting zones. Backcountry tours and off-piste skiing should be started and concluded early. As a consequence of a moderate to strong wind from northerly directions, clearly visible wind slabs formed in particular adjacent to ridgelines and in pass areas as well as above approximately 2400 m. They can especially at their margins be released, even by a single winter sport participant. Avalanche prone locations are to be found in particular on very steep slopes and in gullies and bowls, and behind abrupt changes in the terrain.

Thursday: The high temperatures as the day progresses gave rise to increasing moistening of the snowpack in particular on steep sunny slopes below approximately 2800 m. Towards its surface, the snowpack is weak in some cases. This applies in all aspects. On very steep sunny slopes several medium-sized to large avalanches were observed. A lot of snow is lying at intermediate and high altitudes.

As the day progresses as a consequence of solar radiation there will be an increase in the danger of moist and wet avalanches.