• Rebeca Fonseca de Oliveira Pereira Universidade Federal de Itajubá, Itajubá, Minas Gerais, Brasil
  • Rachel Albrecht Universidade de São Paulo, São Paulo, Brasil




Convective systems. Radar. Lightining. São Paulo.


This study aimed to analyze the spatial and temporal evolution of rainfall and electrification of a Convective System, which occured on March 12, 2012 over the city of São Paulo, during the time interval from 1830 to 1945 UTC. An analysis was made of the behavior of the three dimensional structure of radar reflectivity and lightning type Intra-cloud (IN) and Cloud-Solo (NS), based on two lightning detection networks installed in the region during the RAIN Project, in order to correlate the occurrence of severe weather to the evolution of cloud ascending current, precipitation formation and electrification of this storm. It was observed by the reflectivity of the FCTH Radar images that, at times, the SC showed high values of reflectivity, with over 70 dBZ and indicating the presence of hail within the system. Through the behavior of electrical discharges, it is also noted that these accompany the displacement and intensity of the updraft and through the lightning jump, it is possible to detect in advance whether if the storm is intensifying or not. If so, this storm could possibly become a severe weather and cause serious damage to society.


Download data is not yet available.


BUSER, O., AUFDERMAUR, A. N., Electrification by collisions of ice particles on ice or metal targets, In Electrical Processes in Atmospheres. Eds. H. Dolezalek and R. Reiter Darmstadt, Germany, 294, 1977;

DEIERLING, W., PETERSEN, W.A., LATHAM, J., ELLIS, S. e CHRISTIAN, H.J.: The Relationship Between Lightning Activity and Ice Fluxes in Thunderstorms. Journal of Geophysical Research, Vol. 113, 2008;

GIN, R.B.B, GUEDES, R.L. Climatologia de Relâmpagos no Brasil: Análise Preliminar. Congresso Brasileiro de Meteorologia, 11, 2000;

ILLIGWORTH, A. J., LATHAM J., Calculations of electric field growth, field structure, and charge distributions in thunderstorms, Quart. J. Royal Meteor. Soc., vol. 103, p. 277, 1977;

MACHADO, L.A., VILA, D. e MACEDO, S.R., Forecast and Tracking of Active Convective Cells – Guia do Usuário. Instituto Nacional de Pesquisas Espacias (INPE); 2004;

MARSHAL, B. J. P., LATHAM, J., SAUNDERS, C. P. R., A laboratory study of charge transfer accompanying the collision of ice crystals with a simulated hailstone, Quart. J. Royal Meteor. Soc., vol. 104, p. 163, 1978;

REYNOLDS, S. E., BROOK, M., GOURLEY, M. F., Thuderstorm charge separation, J. Meteor., vol. 14, p. 426, 1957;

VELASCO, I. e FRITSCH, J. M., Mesoscale convective complexes in the Americas. J. Geophys. Res. 92, 9591–9613, 1987;

VILA, D., L. A. T. MACHADO, H. LAURENT e I. VELASCO: Forecast and Tracking the Evolution of Cloud Clusters (ForTraCC) Using Satellite Infrared Imagery: Methodology and Validation. Weather and Forecasting, v. 23, n. 2, PP. 233-245, 2008;

WILLIAMS, E., The tripole structure of thunderstorms, J. Geophys. Res., vol. 94, p.13151; 1989;



How to Cite

Pereira, R. F. de O., & Albrecht, R. (2016). TIME RUSH EVOLUTION AND ELECTRIC ACTIVITY OF A STORM WITH SEVERE WEATHER EVENT. Ciência E Natura, 38, 532–542. https://doi.org/10.5902/2179460X20291