INMET Extends Severe Rain Alerts as ZCAS Unleashes Days of Heavy Downpours Across Brazil

Overview

• A broad INMET alert tied to the South Atlantic Convergence Zone covers much of the country through the weekend, with some corridors in Espírito Santo, Minas Gerais and northern Rio forecast to reach up to 100 mm on Wednesday.
• In Rio de Janeiro state, Duque de Caxias recorded about 212 mm in 24 hours and remains at maximum alert with widespread flooding, a collapsed UPA wall and localized power outages, while the capital logged dozens of water pockets, strong winds and fallen trees.
• Cemaden and Cenad warn of elevated risk of urban inundation and slope failures, including on the Costa Verde, as authorities intensify river monitoring and keep siren and SMS systems active.
• Petrópolis is in a stage of attention with sirens triggered, 14 support points opened and bus service adjustments after significant 24‑hour accumulations and continued rain.
• On the São Paulo coast, Baixada Santista cities reported high totals (Itanhaém 176 mm; Peruíbe 171 mm), emergency shelters and families temporarily displaced, while a prior Navy ressaca advisory cautioned about waves up to 2.5 meters.