Middle Lys Valley

Light snowfall. Rain to 2200 m. As the penetration by moisture increases moist and wet avalanches are to be expected, but they can reach medium size.

Light snowfall. Rain to 2200 m. As the penetration by moisture increases moist and wet avalanches are to be expected, but they can reach medium size.

The sleet will give rise to thorough wetting of the snowpack over a wide area. These conditions will foster a gradual rise in the danger of wet and gliding avalanches in the afternoon in particular on east, north and west facing slopes, in particular below approximately 2700 m. Especially in the southeast 10 to 15 cm of snow, and even more in some localities, will fall above approximately 2400 m. The new snow can be released easily, even by a single winter sport participant, in particular on extremely 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, north and west facing slopes.

Above approximately 2300 m snow fell in the last few days. The high humditiy gave rise to moistening of the snowpack over a wide area below approximately 2800 m. The sleet gave rise on Sunday to thorough wetting of the snowpack over a wide area in all aspects below approximately 2400 m. Towards its base, the snowpack is wet, also on shady slopes below approximately 2700 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. Up to 2200 m rain will fall on Tuesday. These spring-like weather conditions in the evening will give rise to increasing and thorough wetting of the old snowpack in particular below the tree line. Over a wide area new snow is lying on a wet snowpack.

In particular in the southeast intensive snowfall to intermediate altitudes. Rain to 2000 m. Significant increase in avalanche danger as a consequence of new snow and strong wind.