From 42.9°c to 23.6°c in Biarritz in just 15 minutes: how to explain this sudden drop in temperature?

From 42.9°c to 23.6°c in Biarritz in just 15 minutes: how to explain this sudden drop in temperature?

On Friday and Saturday, severe and early heat affected a large part of France. Several temperature records have been broken in France, especially in the southwest.

On Saturday, the seaside resort of Biarritz recorded a notable peak of 42.9 °C, up 2.3 °C from the previous 2003 record. If these extreme temperatures are worrying in relation to global warming, it also saw another surprising phenomenon. City to the south of Aquitaine, around 5 p.m.: Within minutes, the temperature suddenly dropped by about twenty degrees, from about 43 °C to 23.6 °C.

“We lost over 20 degrees in the span of a quarter of an hour”The city’s mayor, Mader Arostegue, was surprised.

This sudden drop in temperature is explained by a wind coming from the west, known in the Basque Country, “galerne”, also called “embatta” or “brouillerta” by sailors off the coast of Saint-Jean-de-Luz. goes.

,It is a feature southeast of the Bay of Biscay, occurring in the Cantabrian Mountains and coastal areas of the Basque Country.“, description of Mateo France, which specifies that the arrival of this wind – indicating a sudden worsening of meteorological conditions – leads to a “A sudden drop in temperature and a rapid increase in relative humidity”“, with a drop in temperature that can be “from 12 to 15 degrees”, “in a few minutes”.

The heat wave will end in France this Sunday. The red alert has been lifted by Météo-France, and the arrival of thunderstorms should bring down temperatures across the country.

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