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WEATHER

Flash flood soaks resort village in the Vaud Alps

Flash floods hit villages in the Vaud Alps and parts of the Bernese Oberland following a rainstorm late Tuesday afternoon.

Flash flood soaks resort village in the Vaud Alps
Les Diablerets seen in more clement conditions. Photo:Wikimedia Commons

Les Diablerets, a mountain resort town in the canton of Vaud at an altitude of 1,200 metres, was among the communities most affected by the heavy downpour that lasted around half an hour.

Basements of numerous buildings were flooded, including the tourist office.

“There is between 20 and 30 centimetres in the cellar," an employee of the office is quoted saying by 20 Minutes online.

“It’s like a swimming pool.”

Small streams burst their banks and the town’s main road was flooded.

Pierre-Olivier Gaudard, a Vaud cantonal police spokesman, told the ATS news agency that no roads were closed as a result of the rain.

“There is just debris to clear,” he said.

“There is more fear than harm.”

The storm followed a hail and rain storm a day earlier that struck Saxon, a village in the canton of Valais, devastating apricot orchards and flooding basements of 20 buildings.

The extremely localized storm damaged around two-third of the apricots grown in the village, ATS reported.

While not all of them were destroyed, those damaged will not be able to be sold as top quality fruits, and many will be used for juice, jams and eau de vie, the news agency said.

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WEATHER

Why are there so many weather-related disasters in Switzerland this summer?

From mudslides to flooded hiking trails, several Swiss regions have suffered serious weather-related damage during this year’s summer season.

Why are there so many weather-related disasters in Switzerland this summer?

In the past weeks, frequent spells of extreme weather claimed lives and caused considerable material damage in several regions of the country.

Among them:

In June, parts of Switzerland, including the canton of Graubünden and the resort of Zermatt in Valais, were hit by huge floods, which claimed the lives of three people and left buildings and roads destroyed.

They were triggered by a violent thunderstorm that unleashed the rivers, causing a rock and mud avalanche in the municipality of Misox.

Additionally, landslide of mud and rubble destroyed a part of the north-south axis of the A13 motorway.

Areas of Valais and Ticino were also among those badly damaged by storms, with three people dead and five missing in the latter canton; the upper Val Maggia remained cut off from the rest of the country and without water and electricity for days.

And just this week, two people were injured in a massive storm in Brienz (canton Bern) and 70 others had to be evacuated from their homes, after the Milibach river overflowed after heavy rains, carrying stones, boulders and wood, which caused a water collector above the village to flow uncontrollably.

Buildings, parked vehicles, roads and public transport infrastructure were damaged.

Also, more than 620 trails –1,300 km in total – had to be closed to hikers due to heavy rains and flooding that hit some regions of the country at the end of June. 

READ ALSO: Hikers in Switzerland warned as hundreds of trails close

Why has this been happening?

“The summer of 2024 has been marked by particularly bad weather,” said meteorologist Felix Blumer. “There is one or two damaging thunderstorms every summer, but this year, there have been lot of them.”

There is a scientific explanation for this phenomenon: according to Blumer, most of the summer so far, the weather in Switzerland has been dominated by low pressure areas.

“It is precisely the low pressure situations that are important, with the summer solar radiation, the ground heats up very strongly. The warm, light air can rise, cool down, condense – resulting in showers and thunderstorms.”

In a simple(r) language, low pressure gives way to warm air and rainstorms, which explains the high number of strong and destructive thunderstorms.

Is the weather this summer really more ‘extreme’ than in the past?

According to Thomas Schlegel from Switzerland’s official weather service MeteoSwiss, “due to the extreme events that have occurred so far, 2024 will certainly go down in history as a year with a lot of bad weather and damage.”

He also cited “exceptional” lightning activity during the thunderstorms: over 70,000 lightning strikes were recorded — more than during a typical summer.

In fact, two people who were working in a field in Fribourg during one such lightning episode in July, were struck and injured, along with a police officer and a REGA pilot who came to their rescue. 

What’s ahead, weather-wise?

MeteoSwiss’ eight-day weather forecast predicts more rain and thunderstorms, ranging in severity, in various Swiss regions. 

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