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WEATHER

Swiss September so far is hottest since 1911

Switzerland has experienced the hottest first half of September for more than a hundred years.

Swiss September so far is hottest since 1911
Some parts of Switzerland broke records for the time of year. File photo: Sin Amigos

The average temperature across the country from September 1st-14th was 19.8 degrees, Meteo Suisse said on Wednesday.

That’s the second hottest average for this time of year since records began in 1864, and is only surpassed by September 1911’s sunny September, when the mercury averaged 20.1 degrees in the first fortnight.

And some parts of the country experienced record heat so far this month, with Ticino averaging 23 degrees, significantly above the next highest comparable figure, of 21.6 degrees, recorded in the first half of September 1895.

The canton of Valais also broke records with an average temperature of 20.8 degrees. The last time  the first two weeks of September averaged above 20 degrees in the Valais was in 1911.

Unfortunately, it looks like 2016 may be copying 1911 in more ways than one.

According to Meteo Suisse, a meteorological text written in 1911 says that “September was divided into two periods with completely different meteorological conditions: the first fortnight was very hot, practically without rain and very sunny, while the second fortnight was fresher, cloudy and fairly rainy.”

The meteorological conditions of 1911 – blamed on an anticyclone climate in Europe – seem to be repeating themselves this year, said Meteo Suisse.

Indeed, Thursday sees a significant change in the weather, with rain forecast for much of the country, continuing over the next few days.

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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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