Moisture penetration into the snowpack is well advanced. The most precarious areas are slopes where weak layers in the old snowpack are becoming wet for the first time. At present, this mainly affects north-facing slopes between approximately 2200 and 2500 m, and east- and west-facing slopes between approximately 2500 and 2800 m. On south-facing slopes, the snowpack is thoroughly moist as far as into the high alpine regions. In Grisons, the weak layers in the old snowpack are the least deeply buried, which means that wet slab avalanches can also be triggered by human activity in some places.

Higher up, the snowpack is still dry. There are still weak layers in the old snowpack, but no more dry avalanches have been reported in recent days.

In the south, it was very cloudy and a few snowflakes fell locally above 2000 m. There was rain in the Sotto Ceneri. Otherwise, the night was mostly clear and the day sunny.

Fresh snow

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Temperature

At midday at 2000 m, around +2 °C

Wind

• Often moderate from north to west during the night, mostly light during the day
• Bise wind along the Prealps

In the far south, the night into Thursday will be cloudy with some rain; it will become increasingly sunny during the day. In the north, it will be mostly sunny after a mostly clear night.

Fresh snow

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Temperature

At midday at 2000 m, around +5 °C

Wind

Light to moderate northeasterly

The nights will be clear, and with the dry air, the snowpack will freeze at high altitudes to become capable of bearing loads. The days will be sunny and mild; the zero-degree level will be around 3200 m. The winds will be mostly light.

The danger of dry avalanches will not change significantly. This means that in the early morning, touring conditions will be favourable over a wide area. Each day, the danger of wet avalanches will increase appreciably as the day progresses. Ski tours and hut ascents should be completed in good time.