Brazil Issues Multi-State Storm Alerts as Fast-Moving Front Drives Severe Weather

Overview

• Inmet expanded weather warnings to roughly 15 states, with highest-risk red alerts concentrated in the South and parts of Mato Grosso do Sul, and broad orange alerts extending into São Paulo and other areas of the Center-West and Southeast.
• Rio Grande do Sul recorded wind gusts near 100 km/h and remains under a great-danger warning, with additional alerts for coastal winds and a sharp temperature drop in parts of the state.
• São Paulo’s Civil Defense warns of storms through Tuesday with gusts that may exceed 70 km/h and isolated hail, while the city CGE projects unstable mornings and afternoon or evening downpours.
• Official guidance highlights rainfall that can reach 50–100 mm/day in affected zones, potential hail, and risks of flooding, landslides, roof damage, fallen trees and power outages, with emergencies directed to 199 (Civil Defense) and 193 (Fire Department).
• A cold front tied to an extratropical cyclone advanced rapidly from the South on Sunday, with models indicating continued storms across the South, Center-West and Southeast before conditions ease midweek.