Simepar

A cold front and a forming extratropical cyclone are bringing severe storms to southern Brazil. Civil Defence in Rio Grande do Sul reports 83 occurrences across 78 municipalities, with rain and wind damage and rising rivers. Forecasts warn of up to 100 mm of rain, hail and gusts above 76 km/h across five states, while Paraná weather service Simepar expects more storms this week. USP researchers also unveiled a model that can warn of storms up to 30 minutes ahead.