Twenty departments, including eleven new, were placed on orange alert Tuesday by Météo-France because of a risk of "violent storms" after a period of heat.
Eleven new departments involved
The alert launched by the forecast service from Tuesday 14 hours to Wednesday noon was so far the Ain, the Doubs, the Jura, the Loire, the Haute-Loire and the Rhone, but also the Isere, Saone- 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.
© Météo-France
Waves and thunderstorms have already occurred in the early afternoon of Auvergne and South Burgundy in the Jura and north of Haute-Savoie. Thunderstorms should quickly multiply and strengthen on the Haute-Saone, Puy-de-Dome and Haute-Loire, said Météo-France. Rainfall amounts of 30 to 50 millimeters per hour (ie 30 to 50 liters of water per square meter) are expected, "generating a risk of runoff and local flooding", with gusts of wind between 80 and 100 km / h. Météo-France mentions a "highly stormy situation requiring special attention as there is a significant risk of violent phenomena".