Monitoring and forecasting of intensive convective precipitation with the use of the mobile meteorological radar (MMR50)

Abstract

This paper is focused on current possibilities of the measurement and predictions of intense convective precipitation through the mobile meteorological radar (MMR50). This meteorological radar equipment is part of the Information, Notification and Warning system of the Zlin Region in the Czech Republic, which consists of information and communication infrastructure for dealing with extraordinary events. The first chapter describes basic principles of radar precipitation measurement, e.g. radar estimate of rainfall intensity and radar products. The second chapter presents a methodology of measuring and predicting of intense convective precipitation using the mobile meteorological radar (MMR50), including other possibilities of precipitation forecast as NWP models, aerological, satellite, station measurements, statistics of historical situations, the risk of flash floods on the degree of soils saturation and the possibility of observation of dangerous accompanying phenomena. The last chapter deals with the verification of the principles of radar measurements and forecasts in a case study on 24th July 2015. Torrential rainfall in a combination with hail and strong wind gusts caused heavy flooding in the central part of Zlin region, which caused considerable material damage. Timely and quality information about the current and future formation and development of intense convective precipitation is essential for flood prevention measures. Acquired findings and conclusions can be used for crisis management in case of a possible occurrence of flash floods.