South and Southeast Brazil Under High-Severity Alerts as Second ZCAS Triggers Days of Heavy Rain

Overview

• Inmet issued orange and Great Danger warnings through Tuesday for parts of Minas Gerais and Espírito Santo, citing rain above 60 mm per hour or 100 mm per day and winds up to 100 km/h.
• São Paulo state activated a crisis cabinet on Monday to coordinate response as authorities report fresh disruptions including landslides and a highway blockage cleared after heavy rain.
• Rio de Janeiro recorded strong afternoon downpours on Monday with localized flooding in neighborhoods such as Irajá and Méier, and city alerts extend into Tuesday with risk of storms.
• Cemaden and Climatempo forecast very high accumulations, with more than 200 mm possible in Minas Gerais and 200–400 mm in northern and northwestern Rio over five days, increasing chances of river overflows and slope failures.
• The Navy warned of coastal swell between Bertioga (SP) and Arraial do Cabo (RJ) with waves up to 2.5 meters, and authorities urge residents to follow safety guidance and call 199 or 193 in emergencies.