The current heat wave, which began on July 31, is the third recorded since the beginning of the year and the 46th since the start of meteorological records. If the temperatures cool down this Saturday, a fourth wave could be avoided… for the moment. Will 2022 be the year of all records? With three heat waves recorded since the beginning of the year, it does not yet equal the record of 2017, when four (small) waves were recorded. But it could match it, with a fourth wave which could be looming on Sunday. Météo-France tells BFMTV.com that Saturday promises to be decisive because it could “interrupt the series”. The first wave recorded in 2022 dates back to June, between 15 and 19, i.e. five days. Less than a month later, between July 12 and 25, the second was officially recorded, which lasted 14 days, ranking it the fifth longest heat wave and the third most intense heat wave. that France has known, according to Météo-France. In total, on a national scale, the number of heat wave days therefore amounts to 19.”Uncertainty” about the interruption of the third waveSince July 31, a third wave, the 46th recorded in France since the The existence of meteorological records, in 1947, is in progress. “To this day, there remains uncertainty about the interruption of this third summer heat wave (…) On a national scale, it could either end at the start of the weekend thanks to a drop in temperatures over three-quarters of the country, or continue and strengthen next week”, explains Météo-France on its site. Indeed, this Saturday, a “refreshment” arriving from the northwest of the country could interrupt this third wave and, in fact, stop the formation of a fourth wave. A situation which remains uncertain, however, with temperatures which should rise sharply on Sunday: peaks of up to 37°C are expected from the southwest to the southeast, while in the north, the mercury could reach 34°C. C. Towards a record number of heat daysEven if the third wave is interrupted this Saturday, the record for the number of heat wave days nationwide will be broken, explains the meteorological agency to BFMTV.com. Currently, 1983 holds the record, with 23 days. Then comes 2003 (22 days), then 2006 (21 days). If the temperatures drop this Saturday and come to stop the series, between 25 and 26 days of heat wave will be recorded by Météo-France in 2022, according to their calculations which will still have to be formalized. As Météo-France reminds us, heat waves recorded since 1947 on a national scale “have been significantly more numerous in recent decades. Over the past 35 years, they have been 3 times more numerous than over the previous 35 years”. In addition, the number of days of heat waves “has been multiplied by 9”. In terms of drought, 2022 has already entered the annals. July is the driest month over the period 1959-2022 on a national scale and ranks second among the driest months all months combined, behind March 1961 with 7.8 mm, a deficit of 88%.
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