Extratropical Cyclone Triggers Severe Alerts as It Moves From Southern to Southeastern Brazil

Overview

• Brazil’s meteorological services issued orange alerts for intense rain and gusts that may reach 100–115 km/h across parts of São Paulo, Rio de Janeiro, Minas Gerais and Mato Grosso do Sul, with hail risk in several areas.
• The Brazilian Navy warned of coastal swell in Rio de Janeiro from Saturday afternoon to Sunday night, with waves up to about 3.5 meters and guidance to avoid the sea and waterfront exposure.
• Santa Catarina reported early impacts including fallen trees, hail and roughly 40,000 power customers without electricity, with state civil defense advising residents to follow official safety instructions.
• São Paulo’s civil defense sent cell-broadcast ‘severe alert’ messages and will run a crisis cabinet on Saturday, noting potential microburst events and peak gusts up to 115 km/h on the north coast and 100 km/h in the metro area and interior hubs.
• Cemaden flagged moderate hydrological risk for urban flash flooding and creek overflow in the Vale do Paraíba region on Saturday, while utility Enel positioned crews to secure power during Sunday’s ENEM exam.