Strong Storms Return to Brazil’s Centro‑Sul as Polar Cold Eases

Overview

• Forecasters said Wednesday that the polar air driving unusually cold November temperatures is retreating to the Atlantic while a moisture corridor and frontal circulation are re‑energizing convective storms across the Centro‑Sul.
• Official alerts are active: Cimehgo issued a tempestade warning for more than 160 municipalities in Goiás citing possible lightning, gusts above 60 km/h and heavy hourly or daily rainfall.
• Meteorologists highlight the highest short‑term rainfall threat in southern Bahia, where Porto Seguro may receive 100–150 mm, and persistent moderate to heavy rain in the Triângulo Mineiro with typical accumulations around 40–75 mm.
• Localized, uneven downpours have already been recorded, for example heavy totals in Goiânia that exposed the patchy nature of the storms and the risk of flash urban flooding and fallen trees.
• Residents should follow municipal civil‑defense guidance and watch short‑term forecasts because the storms will produce rapid, localized impacts such as intense hourly rain, gusts over 60–80 km/h and isolated hail.