Hail in France (Illustration) -
"Rains, adapt your driving and reduce your speed" on the A8, Vinci motorways posted on Twitter on Tuesday afternoon.
Bordered by two-way, the towns of Valbonne and Mougins, in the Alpes-Maritimes, found themselves under a "fine layer of hail", according to videos posted on social networks.
More than 13 mm of precipitation finally fell, according to Météo-France figures at 5 p.m.
According to Météo Côte d'Azur, "instability was very present" in the Alpes-Maritimes department with numerous thunderstorms.
Between Mandelieu-La Napoule, Cannes and Antibes, sustained rains also fell.
And lightning strikes have been recorded.
A double rainbow in Antibes
The showers then moved towards the plains of the Var and the coasts, towards Le Muy and Fréjus where the cumulative rainfall amounted to more than 10 mm at 5 p.m.
At the end of the day, "the strongest stormy showers evacuated at sea," said Météo Côte d'Azur.
The people of Antibes were able to admire a "double rainbow" after the passage of the storm.
The weather should improve in the evening.
Southeast: February was one of the mildest ever
Hit by a cloud of sand from the Sahara, the Alpes-Maritimes on maximum pollution alert