Heavy Snowfall Triggers Power Outages and High Avalanche Risk in Switzerland

Heavy snowfall swept across Switzerland on March 14-15, 2026, triggering power outages in Saas and Küblis and prompting authorities to declare high avalanche danger across the southern side of the Alps. The sudden return of winter conditions disrupted daily life, transport, and sporting events across multiple cantons. The WSL Institute for Snow and Avalanche Research warned of Level 4 avalanche danger on the southern side of the Alps and the adjacent main ridge. The Swiss federal government also issued warnings regarding the avalanche situation, according to reporting by 20 Minuten. Zermatt recorded 47 centimetres of fresh snow, according to SRF News.

The avalanche danger rating of Level 4 — described as "high" on the five-point European scale — applied to the southern Alpine flank and the adjacent main ridge. The SLF, headquartered in Davos in the canton of Graubünden, issued the warning as part of its regular avalanche bulletin service. Power outages were reported in Saas, a valley community in the canton of Valais, and in Küblis, a municipality in the canton of Graubünden. The access road to Saas-Almagell was closed due to snow accumulation, cutting off the village from the main valley route. Road closures of this kind are a standard precautionary measure when avalanche risk is elevated in narrow Alpine valleys.

Switzerland experiences recurring late-winter and early-spring snowfall events that can bring significant disruption to Alpine communities. The southern side of the Alps is particularly exposed to heavy precipitation from southerly weather systems, a pattern known locally as "Südstau." Avalanche danger at Level 4 is classified as "high" under the European Avalanche Danger Scale, meaning natural and human-triggered avalanches are likely on steep terrain. The canton of Graubünden, where Küblis is located, is one of Switzerland's largest cantons by area and contains numerous mountain communities vulnerable to winter weather disruptions.

The return of winter conditions also affected sport, with football matches cancelled as a result of the snowfall, according to Tages Anzeiger. Watson.ch reported broader restrictions caused by the sudden onset of winter weather. The disruptions came after a period in which spring conditions had begun to take hold in parts of the country, making the snowfall particularly abrupt in its impact. SRF News described the event as a "brief comeback" of winter, suggesting forecasters did not expect the conditions to persist for an extended period. The combination of transport disruption, infrastructure outages, and sporting cancellations illustrated the breadth of impact that a single late-season snowfall event can produce across Swiss Alpine regions.