This work investigates rainfall and flood response for the event that affected the eastern Italian Alps on 27-30 October 2018 (the so-called "Vaia" storm). The event was characterized by extreme cumulated precipitation (up to 850 mm in three days) and wind, causing severe floods, landslides, loss of lives, extended damages to forests, interruption of traffic and electricity supply, as well as other infrastructural damages. The event was heavily influenced by the regional orography and was characterized by a welldefined rainfall hiatus which permits the identification of two consecutive precipitation phases. The paper describes the main hydrometeorological features of the event, reporting on the rainfall forcing and on the results from a post-flood survey campaign which allowed to provide estimates of peak discharges in the Piave River basin, an area heavily impacted by the flood.
Extreme Rainfall and Flooding from the Vaia Storm of October 27-30, 2018 in North-Eastern Italy
L Marchi;S Crema;M Cavalli;
2020
Abstract
This work investigates rainfall and flood response for the event that affected the eastern Italian Alps on 27-30 October 2018 (the so-called "Vaia" storm). The event was characterized by extreme cumulated precipitation (up to 850 mm in three days) and wind, causing severe floods, landslides, loss of lives, extended damages to forests, interruption of traffic and electricity supply, as well as other infrastructural damages. The event was heavily influenced by the regional orography and was characterized by a welldefined rainfall hiatus which permits the identification of two consecutive precipitation phases. The paper describes the main hydrometeorological features of the event, reporting on the rainfall forcing and on the results from a post-flood survey campaign which allowed to provide estimates of peak discharges in the Piave River basin, an area heavily impacted by the flood.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
