Articles | Volume 21, issue 3
Nat. Hazards Earth Syst. Sci., 21, 1135–1157, 2021
https://doi.org/10.5194/nhess-21-1135-2021

Special issue: Hydrological cycle in the Mediterranean (ACP/AMT/GMD/HESS/NHESS/OS...

Nat. Hazards Earth Syst. Sci., 21, 1135–1157, 2021
https://doi.org/10.5194/nhess-21-1135-2021
Research article
31 Mar 2021
Research article | 31 Mar 2021

The heavy precipitation event of 14–15 October 2018 in the Aude catchment: a meteorological study based on operational numerical weather prediction systems and standard and personal observations

Olivier Caumont et al.

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Cited articles

Ancell, B. C.: Improving High-Impact Forecasts through Sensitivity-Based Ensemble Subsets: Demonstration and Initial Tests, Weather Forecast., 31, 1019–1036, https://doi.org/10.1175/waf-d-15-0121.1, 2016. a
Aullo, G., Santurette, P., Ducrocq, V., Jacq, V., Guillemot, F., Sénéquier, D., Bourdette, N., and Bessemoulin, P.: L'épisode de pluies diluviennes du 12 au 13 novembre 1999 sur le Sud de la France, Météo-France, Toulouse, 80 pp., ISBN 2110923407, 2002. a
Berne, A., Delrieu, G., Creutin, J.-D., and Obled, C.: Temporal and spatial resolution of rainfall measurements required for urban hydrology, J. Hydrol., 299, 166–179, https://doi.org/10.1016/j.jhydrol.2004.08.002, 2004. a
Bouttier, F., Vié, B., Nuissier, O., and Raynaud, L.: Impact of Stochastic Physics in a Convection-Permitting Ensemble, Mon. Weather Rev., 140, 3706–3721, https://doi.org/10.1175/mwr-d-12-00031.1, 2012. a
Bouttier, F., Raynaud, L., Nuissier, O., and Ménétrier, B.: Sensitivity of the AROME ensemble to initial and surface perturbations during HyMeX, Q. J. Roy. Meteor. Soc., 142, 390–403, https://doi.org/10.1002/qj.2622, 2016. a
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This study focuses on the heavy precipitation event of 14 and 15 October 2018, which caused deadly flash floods in the Aude basin in south-western France. The case is studied from a meteorological point of view using various operational numerical weather prediction systems, as well as a unique combination of observations from both standard and personal weather stations. The peculiarities of this case compared to other cases of Mediterranean heavy precipitation events are presented.
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