Updated statistics of lightning currents measured at Morro do Cachimbo Station

Parameters of current waveforms of several negative flashes measured recently at Morro do Cachimbo Station were considered in relation to the values provided by a statistical evaluation developed previously for the data of a 13-year period of data acquisition. The impact of these recent measured parameters in the median values of peak-current, front-times and time-to-half-peak-current was evaluated.

►Parameters of lightning currents of negative flashes measured recently at Morro do Cachimbo Station are presented. ►The recent statistics is compared with that of a former study for a 13-year period. ►The median first-stroke peak current preserves the value of the former study, around 45 kA. ►The median subsequent-stroke peak current is increased from 16.3 kA to around 17.6 kA. ►The front-times are decreased for both first- and subsequent-strokes.