Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Nat. Hazards Earth Syst. Sci., 11, 1875-1883, 2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
08 Jul 2011
Tornadoes and waterspouts in Catalonia (1950–2009)
M. Gayà1, M.-C. Llasat2, and J. Arús3 1Agencia Estatal de Meteorología, Delegació Territorial a les Illes Balears, Palma, Spain
2Department of Astronomy and Meteorology, University of Barcelona, Spain
3Agencia Estatal de Meteorología, Delegació Territorial a Catalunya, Barcelona, Spain
Abstract. This paper presents a preliminary climatology of tornadoes and waterspouts in Catalonia (NE Iberian Peninsula). A database spanning 60 yr (1950–2009) has been developed on the basis of information collected from various sources such as weather reports, insurance companies, newspapers and damage surveys. This database has been subjected to a rigorous validation process, and the climatology describes its main features: timing, spatial pattern, and trends in the tornado and waterspout distribution. Results show the highest concentration of tornadoes from August to October, the highest density in the heavily populated coastal areas and a growing positive trend that is likely more closely linked to an increase in observation and perception rather than a real climatic trend.
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Citation: Gayà, M., Llasat, M.-C., and Arús, J.: Tornadoes and waterspouts in Catalonia (1950–2009), Nat. Hazards Earth Syst. Sci., 11, 1875-1883,, 2011.
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