Flash floods are highly variable phenomena in both time and space. Therefore, tools with the potential to provide early warning are needed to analyse them. In Europe, flash floods often occur on small catchments; it has already been shown that the spatial variability of rainfall has a great impact on the catchment response. The aim of this paper is to use a coupled hydrological-hydraulic model (MIKE SHE/MIKE 11) to determine the rainfall thresholds and transformation coefficients from hourly rain to other durations, which will lead to flooding of the inhabited areas to the ungauged Ungureni catchment. The model was calibrated and validated using a reference discharge previously obtained by UTCB at the downstream gauge section of Teleorman River (Tatarastii de Sus) using MIKE 11 UHM module. Once the rainfall thresholds are determined, they can be used in flood forecasting and issuing warning with lead time for the inhabitants of the two villages located in Ungureni watershed. The method proposed in this paper can be used for other watersheds prone to flooding, so warnings can be issued with lead time.
 Ravazzani, G., Mancini, M., Giudici, I., & Amadio, P. (2007). Effects of soil moisture parameterization on a real-time flood forecasting system based on rainfall thresholds. Quantification and Reduction of Predictive Uncertainty for Sustainable Water Resources Management (Proceedings of Symposium HS2004 at IUGG2007, Perugia, July 2007). IAHS Publ. 313, 407-415
 Garambois, P., Roux, H., Larnier, K., Labat, D., & Dartus, D. (2015). Parameter regionalization for a process-oriented distributed model dedicated to flash floods. J. Hydrol., http://dx.doi.org/10.1016/j.jhydrol.2015.03.052 (525), 383-399.
 Adamovic, M., Branger, F., Braud, I., & Kralisch, S. (2016). Development of a data-driven semi-distributed hydrological model for regional scale catchments prone to Mediterranean flash floods. J. Hydrol., http://dx.doi.org/10.1016/j.jhydrol.2016.03.032.
 Miao, Q., Yang, D., Yang, H., & Li, Z. (2016). Establishing a rainfall threshold for flash flood warnings in China’s mountainous areas based on a distributed hydrological model. J. Hydrol., http://dx.doi.org/10.1016/j.jhydrol.2016.04.054.
 Vannier, O., Anquetin, S., & Braud, I. (2016). Investigating the role of geology in the hydrological response of Mediterranean catchments prone to flash-floods: Regional modelling study and process understanding. J. Hydrol., http://dx.doi.org/10.1016/j.jhydrol.2016.04.001.
 Glade, E., Crozier, M., & Smith, P. (2000). Applying probability determination to refine landslide-triggering rainfall thresholds using an empirical antecedent daily rainfall model. Pure Appl. Geophys., doi:10.1007/s000240050017, 157, 1059-1079.
 Aristizábal, E., González, T., Montoya, J., Vélez, J., Martínez, H., & Guerra, A. (2011). Analysis of empirical rainfall thresholds for the prognosis of lanslides in the Aburrá Valley, Colombia,. Revista Escuela de Ingeniería de Antioquia, 8, 95-111.
 Iverson, R. (2000). Landslide triggering by rain infiltration. Water Resour. Res., doi:10.1029/2000WR900090, 36, 1897–1970.
 Costa, G., & Frattini, P. (2003). Distributed modelling of shallow landslides triggered by intense rainfall. Nat. Hazards Earth Syst. Sci., doi:10.5194/nhess-3-81-2003, 3, 81-93.
 Xevi, E., Christiaens, K., Espino, A., Sewnandan, W., Mallants, D., Sorensen, S., et al. (1997). Calibration, Validation and Sensitivity Analysis of the MIKE-SHE Model Using the Neuenkirchen Catchment as Case Study. Water Resources Management, 11, 219-242.
 Thompson, J., Sørenson, H., Gavin, H., & Refsgaard, A. (2004). Application of the coupled MIKE SHE/MIKE 11 modelling system to a lowland wet grassland in southeast England. J. Hydrol., doi:10.1016/j.jhydrol.2004.01.017, 293, 151-179.
 DHI. (2008). MIKE SHE User Manual.
 Zhang, Z., Wang, S., Sun, G., McNulty, S., Zhang, H., Li, J., et al. (2008). Evaluation of the MIKE SHE model for application in the Loess Plateau, China. JAWRA, 44, 1108-1120.
 Drobot, R. (2007). Metodologia de determinare a bazinelor hidrografice torențiale în care se află așezări umane expuse pericolului viiturilor rapide. Bucharest.
 Santos, M., & Fragoso, M. (2016). Precipitation thresholds for triggering floods in Corgo hydrographic basin (Northern Portugal). Geophysical Research Abstracts, 18.
 Jang, J. (2015). An Advanced Method to Apply Multiple Rainfall Thresholds for Urban Flood Warnings. Water, doi:10.3390/w7116056 (7), 6056-6078.
 Krause, P., Boyle, D., & Base, F. (2005). Comparison of different efficiency criteria for hydrological model assessment. (5), 89-97.
 Georgakakos, K. (2005). Analytical results for operational flash flood guidance. 317, 81-103.
 Guzzetti, F., Peruccacci, S., Rossi, M., & Stark, C. (2008). The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides, doi:10.1007/s10346-007-0112-1, 5, 3-17.
 Staley, D., Gartner, J., & Kean, J. (2015). Objective Definition of Rainfall Intensity-Duration Thresholds for Post-fire Flash Floods and Debris Flows in the Area Burned by the Waldo Canyon Fire, Colorado, USA. Engineering Geology for Society and Territory, DOI: 10.1007/978-3-319-09057-3_103, 2, 621-624.