The phenomenon is known as “atmospheric blocking”, and causes the high temperatures that the country suffers. It is expected to last at least for the next few days.
Brazil It is located in the middle of one of the heat waves strongest in its history, with temperatures of more than 40ºC still in the winter. The phenomenon that produces it is known as climate lockdownand prevents the entry of cold frontswhich raises temperatures to unprecedented figures for the month.
Temperatures are expected to keep increasing, since the phenomenon will reach its peak this weekend. The entire country will suffer from the heat, with the exception of the southern state of Rio Grande do Sulwhich will experience another week of rain as it recovers from recent storms.
The effects of this, combined with low thermal pressure areas in Argentina, will cause a prolonged period of sunny weather and temperatures above normal. High temperatures are expected to affect several states, with “very intense” or “extreme” heat, marked by measurements close to 40°C.
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He National Institute of Meteorology (Inmet) issued a low humidity alert in most of the country. Until now, the highest temperature recorded was 44.8°C in Nova Maringá, Mato Grosso, in November 2020. “Monthly, and even absolute, records may fall during this extreme heat event,” authorities predicted.
Meteorologists predict that the peak of this heat wave will occur during the next weekendbetween September 23 and 24, with special emphasis on the capitals of Curitiba, Saint Paul and Rio de Janeiro.
Temperature records
This winter, Brazil experienced its hottest july since official measurements began in 1961with an average temperature of 23°C. At the same time, in August there was another strong heat wave that affected 19 of the 26 states in the country.
Climate change and El Niño phenomenon they are probably amplifying temperatures higher and drier weather conditions.
The city of Saint Paul It is one of the places where temperatures can break records. Among the many days of intense to extreme heat in the state, the temperature will be near or above 40ºC. In the interior and in the capital, temperatures of up to 37ºC to 39ºC.
Source: Ambito
