Wednesday to allow emergency funds to be channelled to the devastated region.
As criticism grew over the fact the region had been placed only on “orange alert” status ahead of the storm, meteorologists were called on to local television stations to explain how their systems had failed to raise the alarm ahead of the torrential downpour.
Pascal Brovelli of the Meteo-France weather service told AFP the damage was due to more rain than expected falling in a very short period of time in heavily urbanised areas.
“Should we have been” on alert red? “We will have to see if we could have anticipated what happened,” government spokesman Stephane Le Foll said on France Inter radio.
Hollande said Sunday the disaster pointed to an environmental lesson to be learnt.
“There have always been catastrophes. But their frequency and intensity are on the increase,” he said, urging that environmental “decisions be taken” as France prepares to host UN-led climate talks in December on a post-2020 pact to curb greenhouse gases.
Also hard-hit was the Antibes Marineland, Europe’s biggest marine park, where penguins and sea lions found themselves in mud-filled pools.
“We have no electricity, no flowing water,” said park director Bernard Gianpaolo, as dozens of firemen worked to pump out water blocking filtration systems at the park.
Shocked residents gave graphic accounts of the drama.
“I saw water pour in from the veranda. Within five minutes, it was up to my waist,” said France Oberlin, a retired resident of Mandelieu-la-Napoule. “I couldn’t open the doors but luckily a neighbour came.”
Seated on a plastic chair, surrounded by debris and overturned cars, she looked despairingly at her ground-floor apartment, in which everything had been destroyed.
Guy Morales in Cannes described how he was in his car when “a sort of wave carried us away. We couldn’t do anything, the car hurtled down the street.”
He, his wife and his dog managed to get out the car and waited for three hours on top of a wall for the water, which had been at shoulder height, to recede.
Rail operator SNCF was trying to restore train services after serious damage to tracks, electrical lines and infrastructure in the flood.
French Interior Minister Bernard Cazeneuve said nine people had been arrested in Cannes for looting.
The region’s worst flood in the past 25 years was in June 2010, when 25 people were killed and there was one billion euros ($1.12 billion) of damage.
In December 1999, 92 people in France were killed by flooding, fallen trees and other storm damage caused by hurricane-strength winds that struck northwestern Europe.