INMET has put 214 municipalities in Rio Grande do Sul under a Brazil bomb cyclone alert graded “great danger” — its highest level — until 23:59 on Thursday. Rio Grande do Sul, Santa Catarina, Paraná and Mato Grosso do Sul sit under storm alerts; São Paulo, Rio de Janeiro and Minas Gerais are also covered. Brazil Bomb Cyclone: Red Alert for Rio Grande do Sul. Ask Open the full Ask Rio Times →What the red alert actually saysINMET, Brazil’s national meteorological institute, has 214 municipalities in Rio Grande do Sul under an alert graded Grande Perigo — great danger, the highest of its four levels. Seven states are under storm alerts: Rio Grande do Sul, Santa Catarina, Paraná and Mato Grosso do Sul on the higher grades, with São Paulo, Rio de Janeiro and Minas Gerais on lower notices.