National Institute for Space Research (INPE) will work on a technical report to give to the “Operador Nacional do Sistema” which analyses the atmospheric conditions in Brazil in the night the blackout occurred. For that, the technicians from the Atmospheric Electricity Group and the Weather Forecast and Climate Studies Center both from INPE, have been working on this project together as atmospheric discharge and some other meteorological issues, as wind force and rains.
Up to the moment, it is possible to state that squall lines were the cause of heavy rains, thunderbolts and winds happened in Paraná and São Paulo locations. As you can see in the images below checked by CPTEC/INPE meteorologist experts.
Unstable mass of hot air that was over the southern area, SP and MS further a cold front just arrived from the south, on Tuesday, were the causative factors that lead to squall lines and thunderstorms.
Source: INPE
