Polar Air Brings Frost and Record Lows Across Brazil’s Center‑South

Overview

• A cold polar air mass driving a sharp drop in temperatures has produced visible frost in highland towns and consecutive subzero mornings in southern states.
• Climatempo reported a national low of −6.7°C in Bom Jardim da Serra on Wednesday, with other Serra catarinense stations also logging negative readings.
• The Instituto Nacional de Meteorologia issued localized frost alerts for areas such as the Vale do Paraíba and warned of light risk to crops with temperatures near 3°C.
• State civil defense agencies in São Paulo activated shelters, distributed emergency kits and urged care for people in street situations because of the intense overnight cold.
• Meteorological services forecast a new front late this week that will first bring rain and possible storms to the South and then reach São Paulo and Rio de Janeiro over the weekend, with temperatures falling again after the system passes.