An intense episode of the Cevennes expected in the southeast: what to expect?

Up to 300mm of precipitation can fall in 24 hours. Started last night, a new marked episode of the Cevennes is expected in the departments of Gard, Lozère and Ardèche, placed in orange rain and / or thunderstorm vigilance. It should especially fall on the reliefs, during the day of Sunday, October 3rd. Raining the Cevennes “will get considerably stronger at the end of the morning with a stormy character”, according to Meteo France. “In this episode, in the Cevennes Gardoises, Lozère and Ardéchoises, the expected accumulations are of the order of 200 to 250 mm, possibly up to 300 mm”.

“All watercourses resulting from the relief will be affected by flooding”, if we are to believe the predictions of meteorologist Loïc Spadafora, specialist in episodes from the Mediterranean and the Cevennes and founder of Gard-Hérault . Weather forecast. “The Hérault, the Vidourle, the Gardons, the Cèze, the Ardèche, the Chassezac, the Baume and all their tributaries. These floods can be significant and cause local flooding.” In the flat areas, the expected accumulations are of the order of 30 to 50 mm, with possible peaks of 80 or even 100 mm, adds Meteo France, while the coastline must remain dry throughout the day.

The rains of the Cevennes will decrease in the evening or the following night, the rain-storm system shifts to the east, with very strong rainfall expected during the passage, risk of storms and storms. “It will then be necessary to pay attention to the accumulations on the Drôme, the Vaucluse, the Bouches-du-Rhône and the Var that can be affected by heavy rainfall”, Météo France specifies in its bulletin which is updated in real time. “These last two departments are placed in orange vigilance with values ​​in the order of 80mm expected in less than three hours.”

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