From Tuesday July 1 at 3:00 p.m. to Thursday July 3 at 4:00 p.m.
Situation
A heat wave is in place with a red alert triggered for 16 departments from Poitou to Ile-de-France via Center-Val de Loire and west of Burgundy. Many other departments remain on orange level alert.
The most west departments see temperatures drop and go back to yellow alert.
This heat wave episode will end on Thursday on 3/4 of the country with the return of a less hot air mass from the Atlantic and the Channel. The heat wave may continue until weekend in the Southeast.
Observation
At the end of the afternoon, We arrive at the peak of heat wave with temperatures of 10 to 15 ° C above seasonal normal on many regions. Heat records for a month of July are broken with 41.6 ° C in Durban-Corbières (Aude), 40.8 ° C in Nîmes-Courbessac, 40.1 ° C in Avignon, 39.8 ° C istres. In Paris-Lariboisière, the temperature reaches 39.5 ° C. In Essonne, the 40 ° C bar is crossed in Milly-la Forêt with 40.6 ° C. In the Cher, the temperature reaches 41.2 ° C in ChateaMaillant.
These strong heat is part of a lasting heat wave context, with remarkable intensity and geographic extension. This type of situation, now more frequent, is favored by the presence of a powerful anticyclone focused on Western Europe, limiting atmospheric circulation and trapping hot air near the ground.
Evolution
Night from Tuesday to Wednesday : It promises to be tropical in most large cities with temperatures of 20 to 24 ° C and sometimes more than 25 ° C, especially in the cities bordering the Mediterranean.
Wednesday : The heart of the heat wave gradually shifts from the center to the northeast. Temperatures still earn a few degrees in the Grand ESR, where the 38 to 39 ° C could be reached from southern Champagne to Alsace. A refreshment begins to be put in place by the Channel and the Atlantic facade. In the evening we will monitor potentially strong enough thunderstorms which will be able to break between Occitania and Begic via the Massif Central.
THURSDAY : The heat wave declines but the very strong heat resist between Rhône-Alpes and the south-east of the country where the 35 ° C are still reached before the thunderstorms of the evening.
Friday : After a night from Thursday to Friday still tropical in the Southeast, it will be the end of the heat wave. He will nevertheless continue to make very hot near the Mediterranean.
The right reflexes to adopt:
– Drink water regularly, even without being thirsty.
– refresh yourself several times a day
– Close shutters and windows during the day, especially during the hottest hours (11 a.m. to 9 p.m.), and ventilate at night.
– Avoid outings and physical efforts in hot hours. Favor air conditioned or shaded places.
– Light dress: loose, light and cotton clothes. Wear a hat and sunglasses outside.
– Pay attention to vulnerable people: children, the elderly, sick or isolated. Take their news regularly.
– Never leave a child or an animal in a car, even a few minutes.