The city of Genoa, Italy, nestled between the Tyrrhenian Sea and the Apennine Mountains, was rocked by severe flash floods on 4 November 2011. About 500 millimeters of rain—a third of the average annual rainfall—fell in 6 hours, killing six people and devastating the city center. A storm of this intensity is considered to be a multicentennial-return-period event. The torrential rainfall inflicted the worst disaster Genoa has experienced since October 1970, when a similar event killed 25 people. The peculiar fine-scale properties of this event motivate a comprehensive research effort in the field of predictability of severe rainfall processes over areas of complex orography.
The “Perfect Storm”: From Across the Atlantic to the Hills of Genoa
PARODI, ANTONIO;BONI, GIORGIO;FERRARIS, LUCA;SICCARDI, FRANCO;TROVATORE, ELISABETTA;
2012-01-01
Abstract
The city of Genoa, Italy, nestled between the Tyrrhenian Sea and the Apennine Mountains, was rocked by severe flash floods on 4 November 2011. About 500 millimeters of rain—a third of the average annual rainfall—fell in 6 hours, killing six people and devastating the city center. A storm of this intensity is considered to be a multicentennial-return-period event. The torrential rainfall inflicted the worst disaster Genoa has experienced since October 1970, when a similar event killed 25 people. The peculiar fine-scale properties of this event motivate a comprehensive research effort in the field of predictability of severe rainfall processes over areas of complex orography.
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