WEATHER. Nearly 30 departments are affected by the rain, flood and wind alert this Wednesday, September 25. The weather will be very disturbed until this Friday with strong winds expected in some regions.
From Wednesday to Friday, the country will experience a sharp deterioration in weather conditions due to a depression named Aitor. “Polar air flowing from the North Atlantic towards the British Isles meets a southwesterly flow fed by mild air over the south of the continent,” explains Météo France. This is why, this Wednesday, several departments are on yellow alert for wind and rain-flooding.
This Wednesday, the rains are widespread in the Centre-West. In the afternoon, they should spread towards the Centre-Val-de-Loire, the Paris basin and towards the north-east. During the night from Wednesday to Thursday, the rain will be more sustained towards Aquitaine, Limousin and up to Franche-Comté. The equivalent of one month to one and a half months of rain could fall on these areas.
From Thursday, the rain should weaken on an axis Pyrenees-Cévennes-Alpes du Nord. However, the weather will remain unstable and windy. As for the trend for this Friday, cooler weather will appear with heavy thunderstorms in the west, along the Atlantic with rains that will spread over the Northern Alps, according to La Chaîne Météo.
The wind will blow regularly in several regions. This Wednesday, the wind will blow strongly in the northwest, then will move towards the center-west with gusts of up to 80 km/h. The Paris basin will also be affected during the night from Wednesday to Thursday with winds between 60 and 75 km/h. On Thursday, Lorraine and Franche-Comté will be affected with winds of up to 90 km/h, and up to 100 km/h in the mountains. Finally, on Friday, the wind could strengthen on the Aquitaine coast and in Occitanie in the afternoon, with winds of up to 100 km/h on the coast, again according to information from La Chaîne Météo.
The departments affected by heavy rain and strong winds due to the Aitor depression this Wednesday are placed on yellow alert or “significant risk”: Aisne, Ardennes, Aube, Charente, Cher, Côte-d’Or, Indre, Indre-et-Loire, Loir-et-Cher, Loire-Atlantique, Loiret, Maine-et-Loire, Marne, Haute-Marne, Meurthe-et-Moselle, Meuse, Moselle, Nièvre, Haute-Saône, Seine-et-Marne, Deux-Sèvres, Vienne, Haute-Vienne, Vosges, Yonne and Territoire de Belfort. Please note that two departments are placed on orange alert, namely Charente-Maritime and Vendée.