After days marked mainly by dry air, a cold front begins to bring more significant rain from this Tuesday (9). The system moves through the south of Brazil on Monday night and advances towards the coastal region of São Paulo until Wednesday. Along the way, there is a risk of storms and strong winds. According to meteorologists, the rains will begin to intensify at the end of this Monday (8), with accumulations that could reach 100 millimeters. From Tuesday (9), the cold front establishes itself and the forecast is for intense rain in much of the South, North and Southeast. (See map below) Map shows states affected by rain this week Art g1 The most significant accumulations, which can reach 150 millimeters, are expected for areas of Mato Grosso do Sul, Roraima and Pará. In Roraima, nine of the state's 15 cities are already in an emergency situation due to the heavy rains of recent weeks. Meanwhile, the cold won't let up. After the cold front passes, a new mass of cold air should establish itself, keeping temperatures low in the South, part of the Southeast and the Midwest.