| Nicu BARBU1,3, Sabina ȘTEFAN1,2
Abstract. Severe convective storms are high-impact meteorological phenomena that develop under conditions of pronounced atmospheric instability and deep convection. These systems are capable of producing extreme weather events, including torrential rainfall, intense lightning activity, large hail, and strong wind gusts, and under certain conditions, even tornadoes or waterspouts. One of the most critical hydrological consequences is the occurrence of flash-floods, which pose a significant threat to infrastructure and vulnerable communities due to their rapid onset and intensity. This study investigates the hydrological impact of a severe convective storm that affected the Brosteni area during 27–28 July 2025. The analysis focuses on the dynamic and thermodynamic atmospheric conditions, mesoscale circulation patterns, and the influence of surface characteristics such as topography, land use, and soil moisture. By integrating synoptic-scale analysis, high-resolution numerical modelling, and radar data, the study aims to improve understanding of the physical mechanisms responsible for storm initiation, persistence, and the generation of associated hydrological hazards. The results contribute to the enhancing forecasting capabilities and risk management strategies related to extreme convective weather events. Keywords: deep convection, severe storms, atmospheric instability, flash floods, heavy rain DOI 10.56082/annalsarsciphyschem.2026.1.106 1Faculty of Physics, University of Bucharest; 2Academy of the Romanian Scientists; 3Administrația Română a Serviciilor de Trafic Aerian (ROMATSA) |
PUBLISHED in Annals Academy of Romanian Scientists
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