Flash floods are sudden and intense floods that occur within a short period, typically six hours or less, following heavy rainfall, rapid melting of snow, or the failure of a dam or levee. These floods can result in significant and often life-threatening conditions, as they can happen with little warning and can lead to severe inundation of land, property, and infrastructure. Flash floods are characterized by swift water flow that can be powerful enough to wash away vehicles, uproot trees, and cause significant erosion. The rapid onset of these floods makes them particularly dangerous, requiring prompt emergency response and preparedness measures. Flash floods are most common in areas with steep terrain, urban environments with poor drainage systems, and regions that experience sudden heavy rain events.
The AP-4 motorway, spanning 32 kilometers between Dos Hermanas and Las Cabezas de San Juan, is submerged due to heavy rains, halting its link between Seville and Cádiz. The severe…