Time series of river-flow observations at Bomporto (coordinates 661919 E 4954652 N, WGS84 UTM 32 N; elevation 32 m asl) along Panaro River (Po River Valley, northern Italy). Recording time step 1 h. Starting from January 1923 to December 1983. Data collected by Servizio Idrografico Italiano (the former Italian hydrographic agency), by converting water stage observations into flow discharges by using a flow rating curve. Data were collected during the routinely monitoring of river-flows conducted by the Italian hydrographic agency. Only flood events are included, while baseflow periods are omitted.