Brazil Braces for Weekend Storms as Inmet and Cemaden Warn of Heavy Rain and Flood Risk

Overview

• Inmet maintains multi‑region alerts through Saturday with 20–30 mm/h rain, up to 50 mm/day, and winds of 40–60 km/h across parts of the North, Center‑West and Southeast.
• Cemaden reports moderate risk of gradual inundation in riverbank communities of Rio Branco, Cruzeiro do Sul and Tefé, with the Rio Acre at 13.53 m in the capital, above alert level and 47 cm below overflow.
• Urban downpours triggered flooding and disruptions in Rio’s West Zone, including BRT interruptions and pockets of standing water, while São Paulo entered state of attention with a creek overflow in the East Zone and flooding in ABC cities.
• Authorities activated responses including emergency decrees in Rio Claro (RJ) after 107.2 mm fell in about an hour and in Osvaldo Cruz (SP) after damaging storms, as São Paulo’s Defesa Civil prepared a crisis cabinet for Sunday and Monday.
• Southern states face escalating risk with Inmet alerts for intense storms in Rio Grande do Sul and Santa Catarina, Paraná listing 313 cities under a storm warning, while Manaus, Campina Grande and parts of Piauí also reported weather‑related incidents.