Persistent rainfall, melting snow, and saturated ground have led to significant flooding in the Swiss canton of Valais. The popular tourist destination of Zermatt, situated near the iconic Matterhorn mountain, experienced severe disruptions on Friday as the Mattervispa river partially overflowed, cutting off the mountain village from the outside world. The Matterhorn-Gotthard Railway halted operations, leaving Zermatt inaccessible since midday. Authorities in Valais are particularly concerned about the Rhone river and its tributaries, which are threatening to overflow. WATCH: “unprecedented” f…