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Inmet Issues Red Alerts as Violent Storms Pound Brazil’s South

An extratropical cyclone and advancing front have driven storms that produced extreme gusts, major outages and structural damage and are forecast to keep the region at high risk into Tuesday.

Overview

  • Strong storms struck the South on Monday, producing gusts over 100 km/h in multiple Rio Grande do Sul towns, collapsing a vacant building in Pelotas and leaving at least one person seriously injured after a fall from a roof.
  • The National Institute of Meteorology issued a red-level warning covering hundreds of municipalities that warns of more than 60 mm in one hour, daily totals above 100 mm, winds above 100 km/h and possible hail.
  • Utilities reported widespread power loss with more than 930,000 points without electricity early Monday and roads blocked by fallen poles and debris, creating immediate safety and mobility problems.
  • Forecasters say the event is driven by a cyclone moving from the Argentine coast and a cold front that will keep heavy rain and strong winds through Tuesday before a polar air mass reduces instability later in the week.
  • State Defesa Civil offices, emergency services and energy companies are operating high-risk alerts, urging people to seek shelter, avoid flooded areas and register for local warnings while authorities assess landslide and flood risk in saturated valleys.