The weather will be stormy Wednesday over much of the country, according to Météo-France forecasts. Tuesday, twenty departments, including eleven new, were placed in orange alert because of a risk of "violent storms" after a period of heat.
The alert launched by the forecast service from Tuesday 14 hours to Wednesday 12 hours so far covered the Ain, the Doubs, the Jura, the Loire, the Haute-Loire and the Rhone, but also the Isère, the Saône -and-Loire and Haute-Savoie. But Météo-France has extended orange vigilance to eleven new departments in its latest bulletin: on the one hand, Bas-Rhin, Haut-Rhin, Vosges, Territoire-de-Belfort and Haute-Saone, and Aveyron, Cantal, Lot, Lozère, Tarn-et-Garonne and Puy-de-Dôme.
Instability in much of the country
A stormy episode will approach the south-west of the country, from the Pyrénées-Atlantiques and Hautes-Pyrenees towards Périgord and Quercy during the evening of Tuesday and then go up during the night to the Massif Central and the east side of the country. At dawn on Wednesday, we will find a still marked instability over a large northeastern quarter of the country, stormy showers will be frequent from the Massif Central to the northern Alps, Burgundy-Franche-Comte and the Grand-Est . These thunderstorms will gradually decline during the day to the east and will only concern the eastern borders in the late afternoon, the Alps and the Jura in the evening.
20 dpts in #OvigilanceOrange
Stay informed on https://t.co/rJ24zzDXpCpic.twitter.com/t9hv4Kn9Zy
The instability, although a tone below, will also be present on a good part of New Aquitaine, Occitanie and the west of the Massif Central towards the Berry, the Champagne and the Ardennes, the showers will be frequent but thunderstorm activity will be lower.
Far from hot temperatures
Note, however, that the thinnings will be wider in the afternoon even if the sky will be clouded by clouds of altitude increasingly dense from the west, announcing the arrival of a new rainy degradation in progress evening and night on Brittany.
At daybreak, the thermometer will show 14 to 17 degrees on the shores of the Channel, 17 to 20 on the rest of the country with peaks of 20 to 22 on the Mediterranean shoreline. The maximum will be close to 22 degrees in Lannion and Dunkirk and Strasbourg, 23 in Auxerre, 24 in Lille, 25 in Rodez, 28 in Bordeaux, 31 in Marseille and Bastia.