An orange “thunderstorms” alert was triggered for Saturday in 31 departments of France. The weather services have also placed 14 departments on orange “thunderstorm” alert for Sunday in the Grand-Est.
An orange “storm” alert has been triggered for Saturday in 31 departments as a strong storm episode will cross most of the country, indicates Météo France. The meteorological services have also placed 14 departments on orange “storm” alert for Sunday in the Grand-Est. Saturday at 06:00, the departments of Tarn, Aveyron, Lot, Cantal, Allier and Ain were placed on orange “storm” alert for this Saturday afternoon.
They thus joined the 25 departments which were already there: Charente, Charente-Maritime, Cher, Gironde, Landes, Deux-Sèvres, Vienne, and all the departments of Grand Est and Burgundy-Franche -County. “The altitude depression at the origin of the stormy degradation is currently rising over Spain towards the Pyrenees,” Météo France said on Saturday morning. In Aquitaine, “frequent storms are present” accompanied by “strong electrical activity, locally heavy rain intensities sometimes of 20 to 30 mm/h” and “hail in places”.
From the Massif Central to the northeast
From the Massif Central to the northeast, the stormy episode has not yet started. In the morning, these storms will extend to the Centre-Val de Loire, while from the Pays de Loire to Ile-de-France, Champagne-Ardenne and Lorraine, cloudy passages may give locally stormy showers but more isolated.
Similarly, from Occitanie to Provence-Alpes-Côte d’Azur, the sky will be very overcast and some showers will be possible from the morning. But at the same time, a more marked stormy deterioration will approach the Pyrenees, and will quickly extend towards the Massif Central. In the afternoon, from the east of the Pyrenees to Limousin, then to Auvergne Rhône-Alpes, the storms will become strong and will multiply, giving high intensities of rain, sometimes hail and powerful gusts of wind.
This area of storms will head towards the Centre-Val de Loire, the east of the Ile-de-France and Bourgogne Franche-Comté in the late afternoon, to hit the Grand-Est in the evening, with continued heavy rain, violent gusts of wind and hail, particularly in the north-east of the country where these storms will be the most violent. Only the regions from Brittany to Nord-Pas-de-Calais, as well as Corsica, will remain safe from this bad weather, and will maintain calmer but cloudy weather. The south-easterly wind will blow quite strongly until the early afternoon from Provence-Alpes-Côte d’Azur to the Massif Central.
Morning temperatures will be between 8 and 13 degrees from Brittany to Belgium, 15 to 20 degrees elsewhere, up to 21 to 22 degrees in Corsica. In the afternoon, it will be 18 to 23 degrees near the Channel and the Atlantic, 23 to 28 degrees elsewhere, but up to 27 to 32 degrees from the Grand-Est to Berry, Rhône-Alpes and Provence-Alpes-Côte d’Azur, and in Corsica, locally 34 in the Alsace plain and on the Isle of Beauty.
