Middle Lys Valley

Snowfall to above 2200 m. Rain to 2200 m. As a consequence of the precipitation the avalanche prone locations will become more prevalent.

Snowfall to above 2200 m. Rain to 2200 m. As a consequence of the precipitation the avalanche prone locations will become more prevalent.

5 to 15 cm of snow, and up to 20 cm in some localities, will fall above approximately 2400 m. This applies in particular along the border with France. The moist fresh snow as well as the isolated winds slabs that are forming can be released by a single winter sport participant, in particular on very steep shady slopes above approximately 2500 m. Moist avalanches can additionally in some places be released in the weakly bonded old snow in particular on very steep east and west facing slopes. The sleet will give rise to thorough wetting of the old snowpack over a wide area below approximately 2300 m. These conditions will cause a rise in the danger of wet and gliding avalanches in particular on east, north and west facing slopes, in particular below approximately 2400 m.

The high humditiy gave rise on Saturday to moistening of the snowpack over a wide area below approximately 2800 m. Outgoing longwave radiation during the night will be barely evident. The surface of the snowpack will cool hardly at all during the overcast night and will already be soft in the early morning. The spring-like weather conditions gave rise to increasing moistening of the snowpack in particular on sunny slopes below approximately 2900 m. Towards its base, the snowpack is wet, also on shady slopes below approximately 2400 m. Up to 2200 m rain will fall until the evening. These weather conditions will give rise to thorough wetting of the old snowpack over a wide area below approximately 2200 m.

Snowfall to intermediate altitudes. Slight increase in avalanche danger.