The frequently deep layers of fresh fallen snow and freshly generated snowdrift accumulations from this week lie deposited atop a pronounced weak layer on west-facing, north-facing and east-facing slopes. From the southern Valais over the northern Ticino as far as Grisons, furthermore, the entire old snowpack is expansively metamorphosed in numerous places. Avalanche triggerings by persons are still easily possible in all regions with the exception of the southern flank of the Alps. This applies in particular to the inneralpine regions.
As a result of the small amount of fresh snowfall and westerly winds, predominantly small-sized snowdrift accumulations were generated in the western and the northern regions. These will continue to expand during the course of the day on Sunday as a consequence of increasingly intense winds.

On Friday night in the northern and the eastern regions there was a small amount of fresh snow registered. The snowfall level descended from 1300 down to 600 m. Following dispersal of residual clouds on Saturday it became increasingly sunny during the daytime. In the Jura region, in the Valais and in the southern regions it was generally sunny.

Between Friday evening and Saturday morning the following amounts of fresh snow were registered above approximately 1400 m:

• Prealps, northern flank of the Alps from the eastern Bernese Alps as far as Liechtenstein, northern Grisons: 5 to 10 cm, in the eastern sector of the northern flank of the Alps as much as 15 cm;
• in the other regions of Switzerland, only a few centimetres; further to the south it remained dry.

At midday at 2000 m: between -6 °C in the northern regions and -1 °C in the southern regions.

Winds on Friday night were blowing predominantly at moderate strength, at strong velocity in the Jura region and in general at high altitudes, at light to moderate strength during the daytime, from westerly to northwesterly directions.

In the Jura region skies will be predominantly overcast. In the Alps it will be quite sunny to start with, cloud cover will move in increasingly from the northwest during the course of the daytime. In the southern regions it will be quite sunny, accompanied by cloudbanks. The westerly winds will intensify noticeably during the course of the day.

-

At midday at 2000 m: -3 °C in the northern regions and 0 °C in the southern regions.

Winds will be westerly to southwesterly,

• blowing at light to moderate strength on Saturday night and in general south of the Main Alpine Ridge;
• blowing at moderate to strong velocity during the course of the day, intensifying to strong-to-storm velocity in the northern and the western regions during the course of the afternoon.