Zervreila

In the north, Tuesday's large volumes of fresh and drifted snow are gradually stabilizing. In some places, however, the fresh snow from recent days is lying on faceted weak layers and in some cases also buried surface hoar, particularly on shady slopes. In these weak layers, avalanches can be triggered, which may occasionally become large.

In the inneralpine regions of Valais and especially Grisons, weak layers deeper in the snowpack are also still prone to triggering in some places. Isolated avalanches may also be triggered in near-ground weak layers.

Conditions were quite sunny in the west and south after a mostly clear night, while the east saw some sunny intervals.

Fresh snow

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Temperature

At midday at 2000 m, between -8 °C in the north and -4 °C in the south

Wind

Northeasterly

• strong at night, increasing to storm-force at times
• easing to mostly moderate during the day

After a generally clear night, conditions will be quite sunny in the west and south, while the east will see some sunny intervals. Cloud will build up further in the afternoon, but it will remain mostly dry.

Fresh snow

-

Temperature

At midday at 2000 m, around -4 °C in the north and 0 °C in the south

Wind

• Easing overnight to mainly light to moderate northeasterly
• Increasingly moderate northerly during the day, strong in the afternoon on the main Alpine ridge

In the west and south, the nights will be mostly clear, and conditions will be mostly sunny during the daytime. In the east the nights will be partly cloudy and a few snowflakes may fall locally. Friday will be mostly sunny during the day, and Saturday daytime will see some bright periods. On Friday the wind will continue to be a moderate northerly at times, easing to mostly light on Saturday. The zero degree level will be at 1600 m on Friday in the north and at 2200 m in the south. On Saturday it will rise markedly, to 2800 m in the west and south and to 2400 m in the east.

The danger of dry avalanches will decrease. The danger of wet and gliding avalanches will increase over the course of each day. On Friday, this increase will remain slight but it will be more marked on Saturday. Ski touring should be started early and finished in good time.