A new heat wave began Wednesday in Brazil with temperatures forecast to reach 42°C [1] in several regions.
This weather event, known locally as a "veranico," occurs out of season and threatens to disrupt agricultural cycles and public health across the country.
Climatempo, a meteorological institute, said the heat wave started on Aug. 12 and is expected to last until Aug. 19 [2]. The phenomenon is characterized by an out-of-season heat pattern [3].
While reports vary on the total geographic reach, the heat is primarily affecting the Centro-Oeste, Norte, and Nordeste regions [1]. Some reports suggest the veranico will reach all five regions of Brazil [2], including parts of the Sudeste, such as São Paulo and Minas Gerais [3].
Meteorologists said the intensity of the system could lead to historic temperature spikes. Specifically, seven capitals may break their existing heat records [3].
The Centro-Oeste, Norte, and Nordeste regions are expected to see the most severe impacts [1]. The prolonged duration of the heat, lasting a full week, increases the risk of drought conditions in areas already struggling with water scarcity.
Local authorities typically advise residents to increase water intake and avoid direct sun exposure during peak hours when the 42°C peaks are expected [1].
“Temperatures are forecast to reach 42°C in several regions.”
The occurrence of a 'veranico' during August indicates a significant deviation from typical seasonal norms in Brazil. When temperatures spike to 42°C during a period that should be cooler, it places extreme stress on the power grid due to increased cooling demands and threatens crop yields in the Centro-Oeste and Norte regions, which are vital for Brazil's agribusiness exports.
