The Mediterranean coast of France is predicted to be hardest hit, with a month's worth of rain expected withing 48 hours in some areas. "There will be violent localised thunderstorms generating strong rainfall of around 30 to 50 mm in a short time, 50 to 100 mm in a few hours. "The total rainfall expected over the entire episode is around 100 to 150 mm overall, with 200 to 250 mm, or even more, in some areas." Some localised flooding is expected and driving conditions are likely to be extremely difficult during the storms. The rains, although less intense, will hit most of southern and central France over the next two days.

Source: The Local October 21, 2019 14:25 UTC