Cold Front Brings Storms to Central‑South Brazil and Sends Temperatures Down

Overview

• Meteorological services reported the front moved into the Southeast this week, increasing cloudiness and prompting Inmet to issue yellow alerts for storms and low humidity across multiple states.
• Observed storms on Thursday hit central areas including Tocantins and Valparaíso de Goiás, producing gusts near 60 km/h, fallen trees, roof damage and isolated power incidents that required firefighter and utility responses.
• The Defesa Civil of São Paulo says the system should strengthen over the holiday weekend, with heavy rain expected between September 5 and 7 in the metro and coastal zones and totals of 70–100 mm possible in vulnerable basins.
• Forecasters warn the front will be followed by a polar air mass that will markedly lower temperatures and raise geada risk in highlands such as the Serra da Mantiqueira and parts of Paraná.
• Regional contrasts will persist as the interior Northeast stays very hot and dry with highs near 41°C and low afternoon humidity, increasing heat‑related health and fire risks while other regions face flood and landslide threats.