The formation of an extratropical cyclone near the south of the country should cause winds of up to 120 km/h and heavy rains on Wednesday night (12), with a risk of hail in the three states of the region, according to Climatempo.
The most affected places must be the north coast of Rio Grande do Sul and the mountains of Rio Grande do Sul and Santa Catarina. Already on Thursday (13), strong winds and rains should reach the coast of São Paulo.
According to the National Civil Defense, the cyclone formed between Paraguay and Argentina, and will arrive in Brazil in the afternoon, hitting the states of Rio Grande do Sul and Santa Catarina, as well as areas of Mato Grosso do Sul with strong intensity.
Already on Thursday, the National Institute of Meteorology (Inmet) reported that the cyclone should advance to states in the southeast, such as São Paulo, Rio de Janeiro, the Triângulo Mineiro and the south of Minas Gerais. The Inmet forecast is that the cold air mass will also arrive in Mato Grosso, in the south and west of Goiás, in Rondônia and in the south of Acre.
“With the advance of the cold front, an intense mass of cold air will hit the country from Wednesday. On Tuesday, the maximum temperatures drop in Rio Grande do Sul due to increased cloudiness and rain, but, from Wednesday, the cold air advances over the South and Mato Grosso do Sul. On Thursday, the forecast is that the cold air will reach areas of Mato Grosso, Rondônia, south of Acre, west and south of Goiás, São Paulo, Triângulo Mineiro and south of Minas Gerais and Rio de Janeiro. The forecast indicates a downward trend of 10°C to 12°C, in relation to what was observed the previous day, both in the minimum and maximum temperatures in some points in these areas”, said Inmet.
Inmet advises the population of areas affected by the effects of the cyclone to avoid taking shelter under trees and to park their vehicles close to transmission towers and advertising signs.
The body also requests that electrical appliances and the general power supply be turned off and suggests seeking more information from the Civil Defense (phone 199) and the Fire Department (193).
Cyclone expected to be more intense than June’s
The National Civil Defense reported that the winds of this new cyclone should be equal to or even higher than those that hit Rio Grande do Sul in June, when several cities registered damage.
The information was passed on during a press conference promoted by the Ministry of National Integration on Tuesday afternoon (11).
“The winds will be as strong as those [do ciclone anterior]. What makes us different is that this year we will have more areas affected. In the previous one, we had the concentration in the metropolitan region of Porto Alegre. But, in this one, the area is bigger and the gusts should reach Santa Catarina and Paraná”, commented meteorologist Marcia Seabra, from the National Institute of Meteorology (Inmet).
What is an extratropical cyclone?
According to Climatempo, the extratropical cyclone is an area of low atmospheric pressure where the winds revolve around a center, always clockwise, in the case of the Southern Hemisphere, forming a complete circle.
The company reports that, “the lower the air pressure in the center of the cyclone, the stronger the winds and the greater the potential for the development of very extensive clouds, which cause massive and heavy rain, wind, lightning and eventually hail”.
Source: CNN Brasil
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