Last week 150 to 200 cm of snow fell above approximately 2000 m over a wide area of the north and of the far west; elsewhere 40 to 100 cm fell over a wide area. The fresh snow and snow drift accumulations originating from this period is lying on a shallow, soft old snowpack containing faceted snow crystals. The bonding of the snowpack is therefore unfavourable, in particular on west, north and east facing slopes above 2000 m. Most avalanches of recent days were released in this weak old snow.
On Tuesday in the north, a northwesterly wind will transport fresh and loosely bonded old snow, and snow drift accumulations will form.

On Sunday night in the north a little snow fell over a wide area. During the day it was cloudy at first. It then became increasingly sunny from the west, except in the eastern part of the northern flank of the Alps and in northern Grisons. The south was dry and sunny all day.

From Sunday evening until Monday morning:

• A few centimetres in the north
• Dry in Valais, Grisons and the south

At midday at 2000 m: about -9 °C in the north and -6 °C in the south

Light to moderate from northerly directions

On Monday night a little snow will fall in the north, even at low altitudes. In the course of the morning it will become increasingly sunny from the west.
The south will be dry and mostly sunny during the day.

From Monday night until Tuesday midday:

• 5 to 10 cm over a wide area, but locally up to 15 cm
• Dry in the south

• Increasing as the day progresses
• At midday at 2000 m: between -3 °C in the west and -9 °C in the east and south

• Moderate to strong from the west to northwest
• Easing in the afternoon