RT info:eu-repo/semantics/article T1 Major Role of Marine Heatwave and Anthropogenic Climate Change on a Giant Hail Event in Spain A1 Martín Pérez, María Luisa A1 Calvo Sancho, Carlos A1 Taszarek, M. A1 González Alemán, Juan Jesús A1 Montoro‐Mendoza, A. A1 Díaz Fernández, Javier A1 Bolgiani, P. A1 Sastre, M. A1 Martín, Y. AB A severe hailstorm that occurred in Spain on 30 August 2022, caused material and humandamage, including one fatality due to giant hailstones up to 12 cm in diameter. By applying a pseudo‐globalwarming approach, here we evaluate how a simultaneous marine heatwave (and anthropogenic climate change)affected a unique environment conductive to such giant hailstones. The main results show that the supercelldevelopment was influenced by an unprecedented amount of convective available energy, with significantcontributions from thermodynamic factors. Numerical simulations where the marine heatwave is not presentshow a notable reduction in the hail‐favorable environments, related mainly to modifications in thermodynamicenvironment. Our simulations also indicate that the environment in a preindustrial‐like climate would be lessfavorable for convective hazards and thus the hailstorm event would likely not have been as severe as theobserved one, being possible to perform a novel attribution of such kind PB AGU Publications SN 0094-8276 YR 2024 FD 2024 LK https://uvadoc.uva.es/handle/10324/71402 UL https://uvadoc.uva.es/handle/10324/71402 LA spa NO Geophysical Atmospheric Letters, 51, e2023GL107632, https://doi.org/10.1029/2023GL107632 AÑO: 2024 DS UVaDOC RD 22-dic-2024