Zervreila

Snowpack

The snowpack is locally highly variable and snow depths vary greatly depending on wind exposure. There is only little lying snow in the south. With the clear nights and good radiation conditions, the snowpack has become increasingly faceted. In addition, some surface hoar has formed on the surface of the snowpack.

The sometimes strong southerly winds have formed fresh snowdrift accumulations at altitude. With new fallen snow and westerly winds, mostly small snowdrift accumulations will develop on Saturday. These will build up on the unfavourable old snow surface, especially in places that are sheltered from the wind, and are prone to triggering. In addition, the northern Alpine ridge, Valais, the Gotthard region, northern and central Grisons and Engadine have weak layers in the middle of the snowpack in the region of melt-freeze crusts, some of which are still prone to triggering.

Weather forecast until Saturday

In the north, it will be mostly cloudy and some snow will fall during the day. The snowfall level will be between 500 and 800 m. In the south, it will be cloudy with bright intervals, clearing as the day progresses.

Fresh snow

Above approximately 1200 m in the west up to 10 cm, elsewhere widely up to 5 cm, in the south it will remain dry

Temperature

Temperatures will fall, reaching between -4 °C in the north and -2 °C in the south at midday at 2000 m.

Wind

• overnight to Saturday mostly weak from the southwest to west
• freshening and moderate from the west to northwest as the day progresses, sometimes freshening to strong at high altitudes

Weather review for Friday

In the mountains and in the south, it was mostly sunny with patches of cloud as the day progressed.

Fresh snow

-

Temperature

At midday at 2000 m, between 0 °C in the north and -2 °C in the south.

Wind

Weak to moderate, on the northern Alpine ridge sometimes moderate to strong from southerly directions at high altitudes

OutlookSunday

In the north and east, it will be mostly cloudy and snow will fall. The snowfall level will be 600 m. It will be partly sunny in Valais and Engadine and mostly sunny in the south. The northerly wind will be moderate, in high Alpine regions up to strong. Avalanche danger will increase, especially in the north and east.

Monday

In the mountains, it will be mainly sunny and appreciably warmer. The northerly wind will ease during the night and be weak to moderate during the day. The danger of dry avalanches will slowly decrease.