An "orange alert" for storm and rain-flooding has been placed in effect since midday, the prefect of the Provence-Alpes-Cote d'Azur region, where the city of Marseille is located, said in a statement on social media.
"Rainfall could reach 70 to 90 mm in some areas and locally 120 mm in a few hours. These weather forecasts raise fears of heavy rainfall across the region between 7pm and 10pm, i.e. at the start and end of the match, which was expected to attract nearly 70,000 supporters to the Orange-Velodrome stadium."
The French League Football Association indicated that the match would be rescheduled for Monday at 20:00 CET.