Articles | Volume 26, issue 9
https://doi.org/10.5194/nhess-26-4429-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-4429-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Storm Gloria (2020): coexisting types of compound flooding in the West Mediterranean Region
Montserrat Llasat-Botija
CORRESPONDING AUTHOR
GAMA, Department of Applied Physics, Universitat de Barcelona, Barcelona, 08028, Spain
IdRA, Water Research Institute, Universitat de Barcelona, Barcelona, 08028, Spain
Raül Marcos-Matamoros
GAMA, Department of Applied Physics, Universitat de Barcelona, Barcelona, 08028, Spain
Maria Aguilera-Vidal
Laboratori d'Enginyeria Marítima, Universitat Politècnica de Catalunya, BarcelonaTech, Barcelona, 08034, Spain
José Antonio Jimenez
Laboratori d'Enginyeria Marítima, Universitat Politècnica de Catalunya, BarcelonaTech, Barcelona, 08034, Spain
María Carmen Llasat
GAMA, Department of Applied Physics, Universitat de Barcelona, Barcelona, 08028, Spain
IdRA, Water Research Institute, Universitat de Barcelona, Barcelona, 08028, Spain
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Cited articles
AEMET: Informe de episodio meteorológico de temporal invernal, aemetBlog, https://aemetblog.es/2020/01/28/informe-de-episodio-meteorologico-de-temporal-invernal/ (last access: 19 June 2026), 28 January 2020.
AEMET: Borrascas con gran impacto de la temporada 2019–2020, https://www.aemet.es/ca/conocermas/borrascas/2019-2020, last access: 25 March 2025.
Aguilera-Vidal, M., Sanuy, M., Ortego, M. I., and Jiménez, J. A.: Rainfall and wave storms interdependence in the western Spanish Mediterranean coast, J. Hydrol.: Reg. Stud., 62, 102873, https://doi.org/10.1016/j.ejrh.2025.102873, 2025.
Aguilera-Vidal, M., Sanuy, M., and Jiménez, J. A.: Beyond localized hotspots: hazard connectivity in spatially compound rainfall-coastal storm events, Environ. Res. Lett., 21, 144021, https://doi.org/10.1088/1748-9326/ae8a69, 2026.
Amaro, J., Gayà, M., Aran, M., and Llasat, M. C.: Preliminary results of the Social Impact Research Group of MEDEX: the request database (2000–2002) of two Meteorological Services, Nat. Hazards Earth Syst. Sci., 10, 2643–2652, https://doi.org/10.5194/nhess-10-2643-2010, 2010.
Amores, A., Marcos, M., Carrió, D. S., and Gómez-Pujol, L.: Coastal impacts of Storm Gloria (January 2020) over the north-western Mediterranean, Nat. Hazards Earth Syst. Sci., 20, 1955–1968, https://doi.org/10.5194/nhess-20-1955-2020, 2020.
Bevacqua, E., Maraun, D., Vousdoukas, M. I., Voukouvalas, E., Vrac, M., Mentaschi, L., and Widmann, M.: Higher probability of compound flooding from precipitation and storm surge in Europe under anthropogenic climate change, Sci. Adv., 5, eaaw5531, https://doi.org/10.1126/sciadv.aaw5531, 2019.
Camus, P., Haigh, I. D., Nasr, A. A., Wahl, T., Darby, S. E., and Nicholls, R. J.: Regional analysis of multivariate compound coastal flooding potential around Europe and environs: sensitivity analysis and spatial patterns, Nat. Hazards Earth Syst. Sci., 21, 2021–2040, https://doi.org/10.5194/nhess-21-2021-2021, 2021.
Canals, M. and Miranda, J.: Sobre el temporal Gloria (19–23.01.20), els seus efectes sobre el país i el que se'n deriva, Report de Resposta Ràpida, edited by: Canals Artigas, M. and Miranda i Canals, J., 201 pp., ISBN 978-84-9965-552-9, 2020.
Coles, S., Heffernan, J., and Tawn, J.: Dependence Measures for Extreme Value Analyses, Extremes, 2, 339–365, https://doi.org/10.1023/A:1009963131610, 1999.
Coles, S. G. and Tawn, J. A.: Modelling extreme multivariate events, J. Roy. Stat. Soc. B, 53, 377–392, https://doi.org/10.1111/j.2517-6161.1991.tb01830.x, 1991.
Comisionado del Gobierno frente al Reto Demográfico (CGRD): Diagnóstico: Estrategia Nacional frente al Reto Demográfico. Eje Efectos de la Población Flotante, Ministerio para la Transición Ecológica y el Reto Demográfico, https://www.miteco.gob.es/content/dam/miteco/es/reto-demografico/temas/analisis-cartografia/diagnostico_eje_flotante_tcm30-517771.pdf (last access: 25 September 2025), 2019.
Cortès, M., Turco, M., Llasat-Botija, M., and Llasat, M. C.: The relationship between precipitation and insurance data for floods in a Mediterranean region (northeast Spain), Nat. Hazards Earth Syst. Sci., 18, 857–868, https://doi.org/10.5194/nhess-18-857-2018, 2018.
Cortès, M., Turco, M., Ward, P., Sánchez-Espigares, J. A., Alfieri, L., and Llasat, M. C.: Changes in flood damage with global warming on the eastern coast of Spain, Nat. Hazards Earth Syst. Sci., 19, 2855–2877, https://doi.org/10.5194/nhess-19-2855-2019, 2019.
De Alfonso, M., Lin-Ye, J., García-Valdecasas, J. M., Pérez-Rubio, S., Luna, M. Y., Santos-Muñoz, D., Ruiz, M. I., Pérez-Gómez, B., and Álvarez-Fanjul, E.: Storm Gloria: Sea State Evolution Based on in situ Measurements and Modeled Data and Its Impact on Extreme Values, Front. Mar. Sci., 8, 646873, https://doi.org/10.3389/fmars.2021.646873, 2021.
de Ruiter, M. C., Couasnon, A., van den Homberg, M. J. C., Daniell, J. E., Gill, J. C., and Ward, P. J.: Why we can no longer ignore consecutive disasters, Earths Future, 8, e2019EF001425, https://doi.org/10.1029/2019EF001425, 2020.
Del Río, L., Plomaritis, T. A., Benavente, J., Valladares, M., and Ribera, P.: Establishing storm thresholds for the Spanish Gulf of Cádiz coast, Geomorphology, 143–144, 13–23, https://doi.org/10.1016/j.geomorph.2011.04.048, 2012.
Del Rosal Salido, J., Bermudez, M., Ortega, M., Sanuy, M., Silva-Santana, M., and Jiménez, J. A.: A composite index framework for compound flood risk assessment, Comm. Earth Environ., 6, 342, https://doi.org/10.1038/s43247-025-02331-z, 2025.
Genest, C. and Favre, A.-C.: Everything you always wanted to know about copula modeling but were afraid to ask, J. Hydrol. Eng., 12, 347–368, https://doi.org/10.1061/(ASCE)1084-0699(2007)12:4(347), 2007.
Gobierno de España: Informe sobre el temporal de lluvia, nieve, viento y fenómenos costeros acaecido en el este peninsular y Baleares como consecuencia de la borrasca “Gloria”, La Moncloa, https://www.lamoncloa.gob.es/consejodeministros/Paginas/enlaces/280120-enlace-gloria.aspx (last access: 19 June 2026), 2020.
González, M. (Coord.): El temporal Gloria (19–23/01/2020): els efectes dels processos geològics sobre el territori, Institut Cartogràfic i Geològic de Catalunya, Barcelona, 122 pp., ISBN 978-84-18199-34-9, 2020.
Green, J., Haigh, I. D., Quinn, N., Neal, J., Wahl, T., Wood, M., Eilander, D., de Ruiter, M., Ward, P., and Camus, P.: Review article: A comprehensive review of compound flooding literature with a focus on coastal and estuarine regions, Nat. Hazards Earth Syst. Sci., 25, 747–816, https://doi.org/10.5194/nhess-25-747-2025, 2025.
Haigh, I. D., Wadey, M. P., Wahl, T., Ozsoy, O., Nicholls, R. J., Brown, J. M., Horsburgh, K., and Gouldby, B.: Spatial and temporal analysis of extreme sea level and storm surge events around the coastline of the UK, Sci. Data, 3, 160107, https://doi.org/10.1038/sdata.2016.107, 2016.
Iglesias, J., Cuesta, I., Salueña, C., Moré, J., and Solé, J.: Analysis and comparison of coupled and uncoupled simulations with the COAWST model during the Gloria Storm (January 2020) in the northwestern Mediterranean Sea, Environ. Modell. Softw., 169, 105830, https://doi.org/10.1016/j.envsoft.2023.105830, 2023.
IPCC: Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation. A Special Report of Working Groups I and II of the Intergovernmental Panel on Climate Change (IPCC), Cambridge University Press, Cambridge, UK, and New York, NY, USA, 582 pp., ISBN 978-1-107-60780-4, 2012.
Jiménez, J. A., Sanuy, M., Ballesteros, C., and Valdemoro, H. I.: The Tordera Delta, a hotspot to storm impacts in the coast northwards of Barcelona (NW Mediterranean), Coast. Eng., 134, 148–158, https://doi.org/10.1016/j.coastaleng.2017.08.012, 2018.
Khodayar, S., Kushta, J., Catto, J. L., Dafis, S., Davolio, S., Ferrarin, C., Flaounas, E., Groenemeijer, P., Hatzaki, M., Hochman, A., Kotroni, V., Landa, J., Láng-Ritter, I., Lazoglou, G., Liberato, M. L. R., Miglietta, M. M., Papagiannaki, K., Patlakas, P., Stojanov, R., and Zittis, G.: Mediterranean cyclones in a changing climate: a review on their socio-economic impacts, Rev. Geophys., 63, e2024RG000853, https://doi.org/10.1029/2024RG000853, 2025.
Leeding, R., Riboldi, J., and Messori, G.: On Pan-Atlantic cold, wet and windy compound extremes, Weather Clim. Extrem., 39, https://doi.org/10.1016/j.wace.2022.100524, 2022.
Leonard, M., Westra, S., Phatak, A., Lambert, M. F., van den Hurk, B., McInnes, K. L., Risbey, J. S., Schuster, S., Jakob, D., and Stafford-Smith, M.: A compound event framework for understanding extreme impacts, WIREs Clim. Change, 5, 113–128, https://doi.org/10.1002/wcc.252, 2014.
Llasat, M. C., Llasat-Botija, M., Pardo, E., and Esbrí, L.: Informe tècnic de l'episodi d'inundacions del 19 a 23 de gener de 2020, Informe d'Estudi Projecte Agora 22, Universitat de Barcelona, https://agora.ub.edu/portal-historic/ (last access: 13 February 2026), 2023.
Luján López, A.: Las siniestralidades de Gloria, Consorseguros: Revista Digital, 16, 1–14, https://www.consorsegurosdigital.com/es/numero-16/sumario/colaboraciones/las-siniestralidades-de-gloria/ (last access: 13 February 2026), 2022.
Marco-Méndez, C., Marbà, N., Amores, Á., Romero, J., Minguito-Frutos, M., García, M., Pagès, J. F., Prado, P., Boada, J., Sánchez-Lizaso, J. L., Ruiz, J. M., Muñoz-Ramos, G., Sanmartí, N., Mayol, E., Buñuel, X., Bernardeau-Esteller, J., Navarro-Martinez, P. C., Marín-Guirao, L., Morell, C., Wesselmann, M., Font, R., Hendriks, I. E., Seglar, X., Camps-Castella, J., Bonfill, E., Requena-Gutiérrez, A., Blanco-Murillo, F., Aguilar-Escribano, J., Jimenez-Gutierrez, S., Martínez-Vidal, J., Guillén, J. E., Cefalì, M. E., Pérez, M., Marcos, M., and Alcoverro, T.: Evaluating the extent and impact of the extreme Storm Gloria on Posidonia oceanica seagrass meadows, Sci. Total Environ., 908, 168404, https://doi.org/10.1016/j.scitotenv.2023.168404, 2024.
MedECC: Climate and Environmental Coastal Risks in the Mediterranean, edited by: Djoundourian, S., Lionello, P., Llasat, M. C., Guiot, J., Cramer, W., Driouech, F., Gattacceca, J. C., and Marini, K., MedECC Reports, MedECC Secretariat, Marseille, France, Zenodo, https://doi.org/10.5281/zenodo.13754020, 2024.
Mendoza, E. T., Jimenez, J. A., and Mateo, J.: A coastal storms intensity scale for the Catalan sea (NW Mediterranean), Nat. Hazards Earth Syst. Sci., 11, 2453–2462, https://doi.org/10.5194/nhess-11-2453-2011, 2011.
Messner, F. and Meyer, V.: Flood damage, vulnerability and risk perception – challenges for flood damage research, in: Flood Risk Management: Hazards, Vulnerability and Mitigation Measures, edited by: Schanze, J., Zeman, E., and Marsalek, J., NATO Science Series IV: Earth and Environmental Sciences, 67, Springer, Dordrecht, the Netherlands, 149–167, https://doi.org/10.1007/978-1-4020-4598-1_13, 2006.
MITECO (Ministerio para la Transición Ecológica y el Reto Demográfico): Guías de adaptación al riesgo de inundación: edificaciones, caso piloto: Ayuntamiento de Los Alcázares (Murcia), Dirección General del Agua, 29 pp., https://www.miteco.gob.es/content/dam/miteco/es/agua/temas/gestion-de-los-riesgos-de-inundacion/4-ayuntamiento-losalcazares-murcia_tcm30-530660.pdf (last access: 13 February 2026), 2020.
Moftakhari, H. R., Salvadori, G., AghaKouchak, A., Sanders, B. F., and Matthew, R. A.: Compounding effects of sea level rise and fluvial flooding, P. Natl. Acad. Sci. USA, 114, 9785–9790, https://doi.org/10.1073/pnas.1620325114, 2017.
Nagler, T., Schepsmeier, U., Stoeber, J., Brechmann, E. C., Graeler, B., and Erhardt, T.: VineCopula: Statistical Inference of Vine Copulas, R package version 2.6.1, https://doi.org/10.32614/CRAN.package.VineCopula, 2025.
National Academies of Sciences, Engineering, and Medicine (NASEM): Resilience for Compounding and Cascading Events, The National Academies Press, Washington, DC, USA, 68 pp., https://doi.org/10.17226/26659, 2022.
OCCC (Oficina Catalana del Canvi Climàtic): L'impacte de la tempesta Glòria, Generalitat de Catalunya, 6 pp., https://canviclimatic.gencat.cat/web/.content/03_AMBITS/adaptacio/ESCACC_2021_2030/Informe-Gloria.pdf (last access: 13 February 2026), 2020.
Palau, R. M., Berenguer, M., Hürlimann, M., and Sempere-Torres, D.: Application of a fuzzy verification framework for the evaluation of a regional-scale landslide early warning system during the January 2020 Gloria storm in Catalonia (NE Spain), Landslides, 19, 1599–1616, https://doi.org/10.1007/s10346-022-01854-2, 2022.
Pantaleoni Reluy, N., Hürlimann, M., and Lantada, N.: How are public compensation efforts implemented in multi-hazard events? Insights from the 2020 Gloria storm in Catalonia, Nat. Hazards Earth Syst. Sci., 25, 3483–3504, https://doi.org/10.5194/nhess-25-3483-2025, 2025.
Pérez-Gómez, B., García-León, M., García-Valdecasas, J., Clementi, E., Mösso Aranda, C., Pérez-Rubio, S., Masina, S., Coppini, G., Molina-Sánchez, R., Muñoz-Cubillo, A., García Fletcher, A., Sánchez González, J. F., Sánchez-Arcilla, A., and Álvarez Fanjul, E.: Understanding Sea Level Processes During Western Mediterranean Storm Gloria, Front. Mar. Sci., 8, 647437, https://doi.org/10.3389/fmars.2021.647437, 2021.
Petrucci, O. and Llasat, M. C.: Impact of disasters in Mediterranean regions: an overview in the framework of the HYMEX project, in: Landslide Science and Practice, Vol. 7: Social and Economic Impact and Policies, edited by: Margottini, C., Canuti, P., and Sassa, K., Springer, Berlin and Heidelberg, Germany, 137–143, https://doi.org/10.1007/978-3-642-31313-4_18, 2013.
Pintó, J., Garcia-Lozano, C., Sardá, R., Roig-Munar, F. X., and Martí, C.: Efectes del temporal Glòria sobre el litoral, Treb. Soc. Catalana Geogr., 89, 89–109, https://doi.org/10.2436/20.3002.01.192, 2020.
Rivas, V., Garmendia, C., and Rasilla, D.: Analysis of ocean parameters as sources of coastal storm damage: regional empirical thresholds in northern Spain, Climate, 10, 88, https://doi.org/10.3390/cli10060088, 2022.
ROM: Recomendaciones de Obras Marítimas 0.3 Wave Annex E1. Wave climate of the Spanish coast, Puertos del Estado, ISBN 978-84-7433-814-0, 1991.
Romero-Martín, R., Caballero-Leiva, I., Llasat, M. C., Llasat-Botija, M., Rigo, T., Valdemoro, H. I., Gilabert, J., Cortès, M., and Jiménez, J. A.: Mapping cumulative compound hydrometeorological and marine-induced risks on the NW Mediterranean coast, Sci. Rep.-UK, 14, 3237, https://doi.org/10.1038/s41598-024-53899-z, 2024.
Romero-Martín, R., Sanuy, M., and Jiménez, J. A.: Unveiling the role of storm surges as a driver of flooding on the western Mediterranean: a case study of the Ebro Delta, Nat. Hazards, 121, 4961–4984, https://doi.org/10.1007/s11069-024-06984-5, 2025.
Santasusagna Riu, A. and Tort Donada, J.: El temporal Glòria: consideracions sobre la seva afecció a la Costa Central Catalana, Treb. Soc. Catalana Geogr., 89, 191–220, https://doi.org/10.2436/20.3002.01.196, 2020.
Sanuy, M. and Jiménez, J. A.: Probabilistic characterisation of coastal storm-induced risks using Bayesian networks, Nat. Hazards Earth Syst. Sci., 21, 219–238, https://doi.org/10.5194/nhess-21-219-2021, 2021.
Sanuy, M., Rigo, T., Jiménez, J. A., and Llasat, M. C.: Classifying compound coastal storm and heavy rainfall events in the north-western Spanish Mediterranean, Hydrol. Earth Syst. Sci., 25, 3759–3781, https://doi.org/10.5194/hess-25-3759-2021, 2021.
Seneviratne, S. I., Nicholls, N., Easterling, D., Goodess, C. M., Kanae, S., Kossin, J., Luo, Y., Marengo, J., McInnes, K., Rahimi, M., Reichstein, M., Sorteberg, A., Vera, C., and Zhang, X.: Changes in climate extremes and their impacts on the natural physical environment, in: Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation. A Special Report of Working Groups I and II of the Intergovernmental Panel on Climate Change (IPCC), edited by: Field, C. B., Barros, V., Stocker, T. F., Qin, D., Dokken, D. J., Ebi, K. L., Mastrandrea, M. D., Mach, K. J., Plattner, G.-K., Allen, S. K., Tignor, M., and Midgley, P. M., Cambridge University Press, Cambridge, UK, and New York, NY, USA, 109–230, https://doi.org/10.7916/d8-6nbt-s431, 2012.
Shan, B., Verhoest, N. E. C., and De Baets, B.: Identification of compound drought and heatwave events on a daily scale and across four seasons, Hydrol. Earth Syst. Sci., 28, 2065–2080, https://doi.org/10.5194/hess-28-2065-2024, 2024.
SMC (Servei Meteorològic de Catalunya): Balanç d'una llevantada històrica a Catalunya, Technical report, 1–11, 2020.
Sotillo, M. G., Mourre, B., Mestres, M., Lorente, P., Aznar, R., García-León, M., Liste, M., Santana, A., Espino, M., and Álvarez, E.: Evaluation of the Operational CMEMS and Coastal Downstream Ocean Forecasting Services During the Storm Gloria (January 2020), Front. Mar. Sci., 8, 644525, https://doi.org/10.3389/fmars.2021.644525, 2021.
Toomey, T., Amores, A., Marcos, M., and Orfila, A.: Coastal sea levels and wind-waves in the Mediterranean Sea since 1950 from a high-resolution ocean reanalysis, Front. Mar. Sci., 9, https://doi.org/10.3389/fmars.2022.991504, 2022.
Wahl, T., Jain, S., Bender, J., Meyers, S. D., and Luther, M. E.: Increasing risk of compound flooding from storm surge and rainfall for major US cities, Nat. Clim. Change, 5, 1093–1097, https://doi.org/10.1038/nclimate2736, 2015.
Zscheischler, J., Martius, O., Westra, S., Bevacqua, E., Raymond, C., Horton, R. M., van den Hurk, B., AghaKouchak, A., Jézéquel, A., Mahecha, M. D., Maraun, D., Ramos, A. M., Ridder, N. N., Thiery, W., and Vignotto, E.: A typology of compound weather and climate events, Nat. Rev. Earth Environ., 1, 333–347, https://doi.org/10.1038/s43017-020-0060-z, 2020.
Short summary
Was Storm Gloria (19-25 January 2020) exceptional, and were its impacts greater because of its multi-compound character? We combined rainfall, wind, wave and insurance data along Spain’s Mediterranean coast to analyse it. Interacting river and coastal floods amplified impacts, simultaneous events widened the affected area, and consecutive floods hindered recovery. Highest losses where severe hazard conditions, but exposure, vulnerability and insurance coverage played a definitive role in them.
Was Storm Gloria (19-25 January 2020) exceptional, and were its impacts greater because of its...
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