Czech Republic as a Central-European country faces a typical set of natural disasters repeatedly attacking the environment. The regional and flash floods have reached the largest extend in comparison with landslides, avalanches, rock falls, fast subsidence and others with exception of the drought. Such problem has been studied in the last two decades in some projects at academic and applied institutes. The main attention was paid to the meteorological, climatic, agricultural, hydrological, social etc. droughts. We have focused on the so called geographical drought caused by an integral impact of representative factors of all natural landscape components and human land utilizing. Using GIS technology, we have carried out an exemplar research ignited by the hot wave and the precipitation deficit in the 2013 summer. Using detail component and land use data at the resolution 1:50 000, five territorial classes of drought risk were distinguished. Some of the most endangered areas cover large territory in the most fertile agricultural land in Southern Moravia. The artificial irrigation has to be planned here to ensure acceptable harvest after hot wave has started.