Twenty -one departments are affected by orange vigilance: eleven for heat wave and 10 for vigilance to thunderstorms.
Le Monde with afp
The heat wave will gradually end Monday, June 20 in the country, plan Météo-France , which has placed 10 departments in orange alert to thunderstorms. In total, 21 departments are affected by orange vigilance. Eleven from the center-east are kept in orange level for heat wave (Jura, Saône-et-Loire, Allier, Puy-de-Dôme, Cantal, Haute-Loire, Loire, Rhône, Ain, Isère, Drôme), according to the bulletin of Meteorology service published Monday morning. Ten are placed in orange alert for thunderstorms: Charente, Corrèze, Creuse, Dordogne, Gers, Gironde, Lot, Lot-et-Garonne, Tarn-et-Garonne and Haute-Vienne.
strong thunderstorms broke out on the night of Sunday to Monday on a axis from the Paris Basin to the Yonne and to the Ardennes, accompanied by intense rains, heavy hailstorms and sometimes strong gusts. Holders of 4 cm to 5 cm have been observed, especially in the Loiret and in Seine-et-Marne.
Very intense cumulation of rain were noted: 47 mm in an hour, 30 mm, including 30 mm in less than fifteen minutes in Vierzon, 60 mm in thirty minutes including 40 mm in fifteen minutes in Lorris (Loiret). During the day, the weather is summer of the Massif Central in the Alps and Jura, in the Mediterranean and Corsica. On the southwest, maritime entrances of low clouds cover the sky at daybreak, with a few drops on the Pyrenean foothills, then the sun will impose itself during the morning.
31 ° C 36 ° C expected in Auvergne-Rhône-Alpes
On the northeast, some waves persist at the beginning of the morning, then the thinnings develop. On the northwest, the sky is loaded with a few scattered small shots. The thinnings widen during the day, the sky is variable. On the other hand on Hauts-de-France in the morning, then Normandy, Ile-de-France and Champagne-Ardennes in the afternoon, time is calm and sunny, in a somewhat refreshed atmosphere.
In the evening, a new stormy degradation marked will be set up by the South West. Thunderstorms will organize mainly on a southwest/north-east axis, by reinforcing during the evening of Monday and night from Monday to Tuesday, by shifting north of the region.
These thunderstorms can be accompanied by violent phenomena (of the same order of magnitude as the thunderstorms of Sunday, or even more locally). The very strong heat of the past few days are diminishing, except in Lyonnais. The maximums are between 20 ° C and 27 ° C north of the Loire, between 28 ° C and 32 ° C on Alsace, Burgundy-Franche-Comté, the center, the southwest, PACA and Corsica. In Auvergne-Rhône-Alpes, the thermometer still displays 31 ° C at 36 degrees Celsius.