The second-highest level of avalanche danger applies on Sunday in canton Valais, southwestern Switzerland, and in the eastern part of the northern slopes of the Swiss Alps. Skiers are advised to avoid skiing off-piste in these areas. +Get the most important news from Switzerland in your inbox According to the bulletin issued by the Institute for Snow and Avalanche Research (SLF), a "high" danger level (level 4 out of 5) of avalanches is expected in several regions and side valleys of Upper, Central and Lower Valais. + Climate change tipped to alter Swiss avalanche patterns by 2100 The same level applies in particular to the north of Prättigau, Sarganserland, Gadmertal, north of Urseren, Glarus South–Grosstal, Maderanertal, Guttannen, Glarus South–Sernftal and Meiental. Heavy snowfall Heavy snowfall affected much of the country on Saturday. By Sunday morning, 20 to 40 centimetres of fresh snow was expected above 800 metres. In the Vaud Alps, the danger level for avalanches is ...