Zervreila

In the regions north of a line from the Rhône to the Rhine and in the extreme west of Lower Valais, weak layers in the snowpack are mostly thickly covered and are now hardly triggerable by human activity.

In the regions south of a line from the Rhône to the Rhine, the persistent weak layers that have been a feature since the beginning of January are still present. However, the number of avalanche-prone locations has decreased significantly. Isolated danger signs have still been observed in the last few days, particularly in Grisons, and dry avalanches have been triggered in deeper layers of the snowpack, some of which were large.

The weak layers in the lower part of the snowpack are being weakened as they become moistened for the first time. Wet slab avalanches are possible as the day progresses. These can occur naturally but can also be occasionally triggered by winter sports participants, at present mainly on sunny slopes below approximately 2600 m. Isolated gliding avalanches are also possible here.

After a mostly clear night, it was quite sunny. Visibility was obscured by Sahara dust.

Fresh snow

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Temperature

At midday at 2000 m, around +5 °C in the west and +3 °C in the east and south.

Wind

Light to moderate during the night, mostly light during the day from southerly directions

The night will be mostly clear, and partly cloudy in the Jura and the south. During the day, it will be mostly sunny in the mountains, with patches of cloud, especially in the south. Visibility will still be obscured somewhat by Sahara dust. Cumulus clouds will form as the day progresses, especially in the Jura and the Prealps, and isolated rain showers will be possible. The snowfall level will be between 1800 m and 2000 m.

Fresh snow

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Temperature

At midday at 2000 m, between +3 °C in the north and +1 °C in the south

Wind

Mostly light southerly to southeasterly winds, northeasterly winds in the Jura, freshening slightly during the course of the day

The nights will be mostly clear in the north and partly cloudy in the south. During the day it will be mostly sunny in the north on both days with cumulus clouds as the day progresses. Isolated showers will be possible, especially in the Prealps and the Jura. The snowfall level will be between 1800 m and 2000 m. In the south, it will still be quite sunny on Monday, with variable cloud cover and light showers possible on Tuesday. The snowfall level will be between 1400 m and 1600 m in the south. The southerly winds will be mostly light, moderate at times.

The danger of dry avalanches will continue to decrease, but only slowly in Grisons due to the weak snowpack structure. The danger of wet and gliding avalanches will increase somewhat as each day progresses. Touring and off-piste descents should be completed in good time.