Flash flood event over central Argentina: A case study.

PAOLA SALIO; MATILDE NICOLINI

Trieste - Italia

Conferencia; 4th European Conference on Severe Storms; 2007

ICTP

Flash flood events occur within minutes or hours of excessive rainfall, this kind of events can destroy buildings and triggers catastrophic situations due to sudden water stream (Davis, 2001). The central region of Argentina presents a flat terrain with a weak slope to the Atlantic Ocean. March 26 to April 1, 2007 was a week characterized by a great number of mesoscale convective systems developed over the whole central region of this country generating strong rain rates. Santa Fe and Entre Rios (Fig. 1) province were principally affected by the presence of successive convective systems that generate strong rain rates flooding large areas and producing important damages in the area and lost of lives. A primary goal of the present work is to describe the synoptic and mesoscale characteristics of the environment associated to a flash flood over the central region of Argentina, that principally affect the cities of Rosario and Gualeguaychú