France's prime minister said Friday that firefighters and other rescuers have been involved in about 2,300 operations, some of them lifesaving, in what appears to be the biggest flooding in 40 years in central France.
Michel Barnier visited French authorities' crisis center in Paris and said there hadn't been such violent rain in many people's memory. Over 1,000 people were evacuated. Most of them were able to go home Friday.
Barnier also praised an alert system, used for the first time, that sent text messages urging people in the concerned areas to delay or cancel their planned trips and stay in a safe place.
French weather agency Meteo France said as much as 700 millimeters (27.5 inches) of rain fell in in 48 hours in some local areas in the regions of Ardeche and Lozere.
National railway operator SNCF halted regional trains between the cities of Lyon and Saint-Etienne on Thursday, saying the tracks were impassable. Local train services will remain disrupted for several days, it said.
The massive floods caused serious damage and power outages Friday in parts of France's mountainous southeast region. There were no immediate reports of casualties.
Several French news stations showed cars, cattle and traffic signs being swept away by the floods. The A47, a main highway near Lyon, was temporarily transformed into a giant stream of water and remained closed Friday.
Meteo France lifted its red alert for bad weather Friday morning but still warned of potential heavy rain and floods in southwestern France.
Some information for this story came from Reuters.