Deepening Extratropical Cyclone Begins Hitting Southern Brazil as Officials Issue High-Risk Alerts

Overview

• INMET has active orange and yellow storm alerts across dozens of areas, warning of rainfall of 30–60 mm per hour or 50–100 mm per day and gusts that can reach 60–100 km/h, including 128 municipalities in northern, central and northwestern Minas Gerais.
• Santa Catarina started feeling the system on Monday with Defesa Civil warning of storms, flooding and coastal agitation, forecasting gusts up to 90 km/h and waves near 3 meters, with risk persisting until Wednesday.
• Meteorologists say the low is organizing on Monday, intensifying from Tuesday to Wednesday as it shifts toward the ocean, with the most severe gusts expected in serras and coastal zones of RS and SC.
• Wider effects are expected in Paraná, São Paulo, Rio de Janeiro, Minas Gerais and Mato Grosso do Sul, where forecasts call for significant rain totals and gusts around 60–80 km/h, with São Paulo bracing for stronger wind and storms by Tuesday.
• Authorities advise avoiding flooded areas, securing loose objects and staying clear of trees and power lines, with emergency contacts 193 for Fire Department and 199 for Civil Defense.