In the Gard region, 250 millilitres of rain fell early Friday, cutting off some roads and causing the local rivers to rise to dangerous levels.
Trucks in the town of Saint-André-de-Majencoules were caught up in the current which swept across parts of the road, parts of which had washed away.
In southern Corsica, the district of Salines in Ajaccio suffered major storm damage and 150 people had to call rescue services for help.
Vue aérienne du quartier des Salines à Ajaccio totalement sous les eaux après les fortes pluies.
— Corse-Matin 📰 (@Corse_Matin) June 11, 2020
(Video Claire Gimenez) pic.twitter.com/NhgjwcUOya
Dozens of cars were swept away, as water rushed through the town centre, and basements and storefronts filled with mud.
Over the course of Friday afternoon, the Cévennes area, a mountain chain spanning 5 departments, including the Gard and Lozère saw massive flooding.
In some places up to 300 mm of rainfall was measured in 12 hours, what would fall in four separate storms.
Cévennes: les impressionnantes images des dégâts causés par les orages ces dernières heureshttps://t.co/N16fDPWjf3 pic.twitter.com/aTPFN75FeL
— BFMTV (@BFMTV) June 12, 2020
More rain and violent storms are expected on Friday evening through Saturday in France's north east and the south.
16 departments have been placed under Meteo France's orange alert – a national severe weather warning.
L'Ardèche, le Gard, la Haute-Loire, la Lozère et Puy-de-Dôme are expected to see major rainfall and flooding.
While severe storm warnings have been given to the east of the country - Côte d'Or, Doubs, Jura, Haute-Marne, Meurthe-et-Moselle, la Meuse, Moselle, Haute-Saône, Vosges and the Territoire de Belfort.
French weather services described the phenomena as "cold drop" meaning that two air pressure systems, one tropical, the other polar, are separated by a wind known as jet stream causing an explosive storm combination.
