Identification and characterisation of extreme flooding have become increasingly crucial given the effects of climate change in the water cycle. When intense, localised rainfall occurs over a small, impervious area where hydraulic structures are unable to cope with water volumes greater than design values, urban flash flooding is likely to occur. The present study outlines a framework to produce robust estimates of urban inundation behavior as studied by Pappenberger, Beven et al. (2005) and

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... ríguez-Rincón, Pedrozo-Acuña et al. (2015), with the novelty that the model set-up, sources of uncertainty, physical assumptions, stochasticity of processes and parameterisations are assessed in a high spatial and temporal resolution framework at local scale. The proposed off-line cascade modelling simulates precipitation patterns, rainfall-runoff components and inundation depths and extents in an urban environment in a probabilistic scheme that allows uncertainty propagation. The methodology is currently being tested in the port city of Newcastle, a prominent north-east urban area of the United Kingdom which at the end of June in 2012 was severely flooded after a prolonged dry spell followed 100-year return period storm, resulting also in the loss of power supplies and significant damage and disruption to the road network.