Inmet Warns Low Humidity Across 14 States as Polar Cold Eases and Weekend Front Brings Rain

Overview

• Inmet issued low‑humidity alerts that began on July 8 and cover 14 states, with warnings remaining in force through July 12 in affected areas.
• Forecasters say some interior points in Goiás, the Distrito Federal, eastern Mato Grosso and northern Mato Grosso do Sul may see relative humidity drop to 12–20% during afternoons.
• A polar air mass produced repeated cold mornings and geadas in the South, especially Paraná, but meteorological models show the cold weakening as a frontal system approaches over the weekend.
• Local Defesa Civil offices have urged hydration, reduced outdoor exertion, bans on open burning and extra care for children, the elderly and people with respiratory issues because dry air raises fire and health risks.
• Inmet and national forecasts warn the incoming front should replace frost with rain across the Southern states and may produce storms or hail there while gradually restoring higher humidity in parts of the Centre‑South.