It had never been so hot earlier this year. But after a historically mild start to February, temperatures will drop significantly on Tuesday, with the arrival in the Alps and Corsica of a storm called Hervé
After particularly mild December and January, February started in exactly the same conditions. The bar of 25 ° C was even exceeded in the South- West Sunday, a first so early in the year. And the trend continued on Monday in the South, with records broken day and night.
Day and night temperature records
26, 5 ° C in Cambo-les-Bains Sunday, 25, 1 ° C in Oloron (Pyrénées-Atlantiques): it had never been so hot this early in the year. But it's not just the days that have been exceptionally mild in recent days.
Night records also fell , since in the night from Sunday to Monday, the mercury did not drop below 14, 7 ° C in Clermont- Ferrand, worthy of summer. Night record also broken in Calvi (Corsica) with 18 ° C, in Sète (Hérault) with 16 , 3 ° C, in Montpellier (Hérault) with 15, 3 ° C, in Dijon (Côte d'Or) with 12, 5 ° C, and in Vichy (Allier) with 13, 7 ° C…
La Rochelle (Charente-Maritime) had already beaten its record of Saturday to Sunday minimum temperature for February, with 11, 9 ° C.
qq monthly high T ° min records this 1–2 – 2020
11. 9 ° C #Tours (11. 8, 25 – 2 – 1997)
11. 4 ° C #Orl ans (11. 3 , 19 – 2 – 1989)
11. 4 ° C # Châteaudun (11. 2, 12 – 2 – 2002)
11. 6 ° C Blois (11. 3, 25 – 2 – 1997 )
10. 1 ° C Nancy-Ochey (9.5, 1–2 – 2016)
. 8 ° C Vatry (10. 2, 12 – 2 – 2002)
(11. 9 ° C La Rochelle = 25 – 2 – 1997) pic.twitter.com/bg5YqHA9YX
— Etienne Kapikian (@EKMeteo) February 1, 2020
New records this Monday
And this Monday, the mercury went up a notch, even if the national heat record for a month of February remains well sheltered: 31, 2 ° C on 29 February 1960 in Saint-Girons (Ariège).
26, 5 ° C were notably found in Socoa (Pyrénées- Atlantiques) . This is the record for this station for the first fortnight of February as well as the earliest heat day (old: 25, 2 ° C, 15 February 1958). It did 26, 6 ° C in Biarritz, never seen before one 25 February, according to forecaster Etienne Kapikian. It was the third highest temperature ever observed in February behind 28 February 1960 (28, 9 ° C) and 26 February 1994 (27, 3 ° C). In the Var, the mercury even rose to 27 ° C at Seillans.
In general, he did more than 20 degrees in the relief regions of southern France. Here are the maximum temperatures recorded in New Aquitaine this Monday, February 3:
Records broken even earlier than in February 2019
If this early heat wave is primarily due to “west-southwest air currents that bring us warm air from the Azores and the Atlantic subtropical “, as the forecaster François Jobard explains, with global warming,” overall we have warmer air masses than before, therefore with equal meteorological situation, we have tendency to break more sweetness records than in the past. ”
Many heat records for the month of February, for example, had already been broken last year, but later. On 27 February 2019 notably rose to the rank of the hottest winter day that France has known since 1950. It was in the southwest that it had been the hottest, again. He had in particular made up to 27 ° C in New Aquitaine and the temperature record for the day had been recorded in Cambo-les-Bains, in the Pyrénées-Atlantiques, with 29 ° C.
Ironically, exactly one year before these heat records, the 27 February 2018 was the coldest day of winter. It was also the coldest day observed so late in the season since the beginning of March 1971.
Net cooling from Tuesday
To return to the current heat peak, it will end on Tuesday, with the arrival of an air mass more cold which will significantly lower temperatures by Wednesday, according to Météo France. This cold drop from the north will also be the source of a storm called Hervé, accompanied by winds blowing at 120 – 130 km / h in Corsica , or even more in the most exposed areas of Cap Corse, which leads to orange vigilance for the two departments of the island. The wind will also blow strongly on the Alpine relief and in Paca, with gusts of the order of 90 at 100 km / h.
Then, Thursday and Friday, the weather will be mostly dry with low clouds persisting locally, while temperatures will continue to drop, with values in places below seasonal norms.