During the Christmas period, parts of South America experienced intense showers and thunderstorms, resulting in substantial rainfall in various regions. On Monday, more than 100mm of rain fell in the Catamarca province in Argentina, which led to flash floods. A sudden surge in river water levels then caused the collapse of a pedestrian bridge, which was the only link between the towns of Rincón and Pomán. While many other roads in the region were damaged and houses were flooded, no casualties were reported.
The unique topography of Catamarca aided the formation of a near-stationary convective shower over Pomán, unleashing several hours of torrential rain and causing catastrophic flooding.
