Heavy snowfall in the Alps has cut off the Swiss ski resort of Zermatt and the French resort of Tignes, prompting authorities to advise residents and tourists to stay indoors. The mayor of Tignes warned of avalanche risks after over a meter of snow fell, leading to power outages in the Savoie region. In Switzerland, major transport routes were closed, and disruptions affected tourists. In north-west Italy, heavy rain caused flooding, with reports of a drowning and collapsed infrastructure. Meteorologists noted extreme rainfall levels.