Lightning strike in the Valais Alps kills 97 Valais Blacknose sheep

Background: Thunderstorms following a heatwave

The incident occurred during a period of severe thunderstorms in Switzerland. Following a prolonged heatwave, heavy thunderstorms moved across large parts of the country in the preceding days. The weather service SRF Meteo had registered around 26,000 lightning strikes within just a few hours by Thursday evening.

The Binntal region in Upper Valais is one of the wettest areas in Switzerland and is known for its frequent thunderstorms. Mountain meadows at this altitude are particularly at risk during summer thunderstorm conditions, as lightning can strike here unobstructed.

For the affected sheep farmers, the loss represents a severe economic blow. Valais Blacknose sheep are considered a robust breed, but are unprotected against direct lightning strikes. Insurance policies typically cover such losses only partially.

Economic consequences for the sheep farmers

Alpine sheep farming has been a tradition in Switzerland for centuries. During the summer months, flocks are driven up to high-altitude alpine pastures, where they keep the vegetation short and thus contribute to the maintenance of the cultural landscape. The animals are often left without direct human supervision for several weeks at a time.

Alpine sheep farming in Switzerland

Meteorologists warn that the number of severe thunderstorms in Switzerland could increase. The combination of long heatwaves followed by thunderstorm conditions creates ideal conditions for strong electrical discharges. Farmers in mountain regions are advised to move their animals to more sheltered areas when thunderstorm warnings are issued.

The exact amount of the damage has not yet been quantified. The affected farm must now decide whether and how to rebuild the flock. Local authorities have pledged support with the recovery and disposal of the animal carcasses.