A cold front associated with an extratropical cyclone keeps unstable weather in areas of the South and Southeast of Brazil this weekend. Saturday (12) and Sunday (13) will have conditions for heavy rain, isolated storms and intense winds, mainly affecting the states of Paraná, São Paulo, Rio de Janeiro, Minas Gerais and Mato Grosso do Sul.
The cyclone is expected to move rapidly toward the Atlantic Ocean, but contributes to the formation of a moisture channel between the North, Central-West, Southeast and South regions. Simultaneously, a cold air mass advances through the South and the southern portion of the Central-West and Southeast, causing temperatures to drop in these areas.
The interior of the country remains under the influence of dry air, with intense heat and low humidity levels. In the Amazon, the heat combined with high humidity favors the formation of new areas of instability. On Saturday, the National Institute of Meteorology (Inmet) maintains an orange danger warning for storms in the west, central, south and east of São Paulo and in the south and southeast of Mato Grosso do Sul, in addition to yellow alerts for other areas.
