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Brazil Expands Severe Weather Alerts as Cold Front Pounds South and Southeast

An advancing cold front linked to an extratropical cyclone has triggered orange and red warnings for hazardous wind, heavy rain and hail through Tuesday.

Overview

  • Inmet broadened its advisories to 15 states, with red alerts centered on Rio Grande do Sul, Santa Catarina, Paraná and Mato Grosso do Sul for winds above 100 km/h and daily rain totals that can exceed 100 mm.
  • São Paulo city entered a flood attention status at midday Monday as the CGE reported pockets of strong storms, while statewide guidance warns of lightning, gusts over 70 km/h and isolated hail.
  • The São Paulo state civil defense sent a Cell Broadcast to Baixada Santista urging people to leave beaches and seek shelter as strong rain, lightning and gusty winds spread along the coast.
  • Cemaden flagged hydrological and geologic risks in parts of Paraná, Rio de Janeiro and Minas Gerais, citing potential for urban flooding, rapid rises in streams and landslides.
  • Authorities expect the highest threat through Tuesday, with a gradual return to more stable conditions from Wednesday, and advise calling 199 (Defesa Civil) or 193 (Bombeiros) in emergencies.