Inmet Issues Red Alert for Violent Storms in Southern Brazil

Overview

• Inmet put Rio Grande do Sul and Santa Catarina under a red "great danger" alert for Monday, August 31, 2026, warning that the notice runs for the full day.
• The agency forecasts intense rainfall exceeding 60 mm per hour or 100 mm per day, gusts above 100 km/h and the possibility of damaging hail.
• A sequence of storms before the alert already left at least two people dead and damaged more than 1,500 homes in Rio Grande do Sul, with multiple municipalities reporting damage to houses and infrastructure.
• In Santa Catarina several cities including Florianópolis, Biguaçu, Ipuaçu, Bom Jesus and Quilombo declared emergency, reported hundreds to thousands of affected residences, closed schools and requested tarps, tiles and humanitarian kits.
• Authorities and civil defense teams are distributing emergency supplies, urging residents to seek shelter, disconnect electrical panels and protect documents, and warning of likely power outages, fallen trees and transport disruptions over the coming days.