A typical hail event combing with strong wind and severe short--range precipitationcaused by a supercell storm on 4th. 9.1998 was analysed,based on 714CD Doppler radar data, relative surface elements and radiosonde data. The typical characteeristics both in theradar echo intensisty field of severe convective weather and in the Doppler speed field weregiven. The results may serve as reference for monitoring and distinguishing and nowcastingto strong convective weather and artificial hail mitigation.