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WEATHER

More rain renews flood and landslide risks

UPDATED: Many parts of western Switzerland remained on alert as weather forecasters called for additional rain on Tuesday, heightening the risk of more flooding and transportation disruptions.

More rain renews flood and landslide risks
Photo: Commune de St. Gingolph/Facebook

A landslide at 9am on Tuesday blocked the rail line between Vevey and Lausanne in the canton of Vaud, shutting down passenger train service between the two cities and disrupting rail traffic between the canton of Valais and Geneva.

Swiss Federal Railways (SBB) said it was putting shuttle buses into service between Vevey and the Vaud capital.

Authorities on Monday closed an access road to Les Crosets, a ski resort village in the Portes du Soleil area of the canton of Valais, because of the fear of a landslide in the area.

Around 60 of the 80 full-time residents of the village decided to evacuate the village, the ATS news agency reported.

More landslides occurred above Monthey, where residents were told to prepare to evacuate the Valais village for a second time after the Vièze River rose again.

The evacuation alert was later lifted when the water level subsided.

The train line between Monthey and Saint Maurice was closed early on Monday as a precaution.

Residents of Saint Gingolph, overlooking Lake Geneva, were told they might have to evacuate the village again after the Morge River, which overran its banks on Saturday, threatened to do the same thing again on Monday.

In Geneva, the high level of the Arve River forced authorities to close the Acacias bridge at around 11am, only reopening it to traffic shortly after 7pm, the Tribune de Genève reported.

Other bridges, including the La Bâtie pedestrian crossing of the Arve, remained closed, while walkways along the river were banned from use.

Elsewhere, the heavy precipitation, which began last Friday, caused mudslides that closed small roads, such as the one between Vex and Euseigne in the Val d’Hérens.

In the canton of Bern, MeteoSwiss, the national weather office, issued flood warnings for Lake Thun, Lake Biel and the Aare River.

All three water bodies spilled over their banks in certain areas on Monday.

Lake Neuchâtel rose close to critical levels “rather exceptional. rarely attained these last few decades”, a government spokesman told RTS.

In the canton of Vaud, communities such as Vevey, and Montreux were keeping a close eye on water courses, while municipalities like Aigle, l’Orbe and Yverdon-les-Bains also remained under surveillance. 

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WEATHER

IN PICTURES: ‘Exceptional’ Sahara dust cloud hits Europe

An "exceptional" dust cloud from the Sahara is choking parts of Europe, the continent's climate monitor said on Monday, causing poor air quality and coating windows and cars in grime.

IN PICTURES: 'Exceptional' Sahara dust cloud hits Europe

Copernicus Atmosphere Monitoring Service said the latest plume, the third of its kind in recent weeks, was bringing hazy conditions to southern Europe and would sweep northward as far as Scandinavia.

Mark Parrington, senior scientist at Copernicus, said the latest event was related to a weather pattern that has brought warmer weather to parts of Europe in recent days.

“While it is not unusual for Saharan dust plumes to reach Europe, there has been an increase in the intensity and frequency of such episodes in recent years, which could be potentially attributed to changes in atmospheric circulation patterns,” he said.

This latest episode has caused air quality to deteriorate in several countries, Copernicus said.

The European Union’s safe threshold for concentrations of PM10 — coarser particles like sand and dust that that can irritate the nose and throat — has already been exceeded in some locations.

A picture taken on April 8, 2024 shows a rapeseed field under thick sand dust blown in from the Sahara, giving the sky a yellowish appearance near Daillens, western Switzerland. – An “exceptional” dust cloud from the Sahara is choking parts of Europe, the continent’s climate monitor said, causing poor air quality and coating windows and cars in grime. (Photo by Fabrice COFFRINI / AFP)

The worst affected was the Iberian Peninsula in Spain but lesser air pollution spikes were also recorded in parts of Switzerland, France and Germany.

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Local authorities in southeastern and southern France announced that the air pollution threshold was breached on Saturday.

They advised residents to avoid intense physical activity, particularly those with heart or respiratory problems.

The dust outbreak was expected to reach Sweden, Finland and northwest Russia before ending on Tuesday with a shift in weather patterns, Copernicus said.

The Sahara emits between 60 and 200 million tonnes of fine dust every year, which can travel thousands of kilometres (miles), carried by winds and certain meteorological conditions.

The Spanish Canary Islands off the coast of northwest Africa saw just 12 days within a 90-day period from December to February where skies were free of Saharan dust, the local weather agency Aemet had reported.

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