Zervreila

The old snowpack contains various weak layers. In particular on wind-sheltered shady slopes, surface hoar is in some cases covered by snow. Deeper in the snowpack there are faceted layers, which in isolated cases are still prone to triggering, especially on seldom-used slopes with little snow cover. As daytime temperatures rise and the surface starts to moisten, in some places, the likelihood of even dry avalanches being triggered is increasing during the course of each day.

Moreover, all regions can expect to see wet snow avalanches over the course of each day. Isolated wet slab avalanches may also be triggered by human activity. Gliding avalanches are to be expected mainly north of a line from the Rhône to the Rhine and also mostly tend to occur as the day progresses.

After a clear night it was sunny and mild.

Fresh snow

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Temperature

At midday at 2000 m, around +8 °C

Wind

Light to moderate from westerly directions

After a mostly clear night, conditions will be sunny and mild.

Fresh snow

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Temperature

At midday at 2000 m, around +8 °C

Wind

Mostly light, moderate Bise wind in the north in the afternoon

On Thursday, after a clear night, it will be sunny and mild. During the night into Friday, slightly reduced outgoing longwave radiation will be encountered in some regions due to high clouds. During the day it will be quite sunny in the south and west. In the north-east it will be variably cloudy and a little precipitation is possible. The snowfall level will drop to around 1600 m.

The danger of dry avalanches will continue to decrease. The danger of wet and gliding avalanches will increase over the course of each day, very rapidly so on Friday in the regions where there is reduced nocturnal radiation.