Grenoble flood 1859

Historically, centenarian floods did extensive damage in the Isere valley. In October 1859, it rained continuously for five days. A warm wind melted the snow, and the temperature suddenly increased from 12 to 19 degrees on 2 November. The simultaneity of those two events resulted in an exceptional flood. In a single night, the water in Grenoble rose at a rate of 15 to 20 cm per hour.

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