Brazil is expected to experience its fourth heat wave since the beginning of the year in the coming days. According to Climatempo's forecast, high temperatures are expected to prevail until May 2, mainly affecting the states in the central-south region.
Throughout Mato Grosso do Sul and in parts of Mato Grosso, Goiás, Minas Gerais, São Paulo and Paraná, temperatures recorded throughout this period are expected to be more than 5 degrees above average.
In other areas, the temperature is expected to be between 3 and 5 degrees above average. They are: the total area of Santa Catarina and Rio de Janeiro and part of Rio Grande do Sul, Paraná, São Paulo, Espírito Santo, Minas Gerais, Bahia, Tocantins, Goiás, Mato Grosso and Rondônia.
Average temperature forecast for the next few days:
- Campo Grande: 29ºC
- Cuiabá: 33ºC
- Goiânia: 31ºC
- São Paulo: 26.6ºC
- Belo Horizonte: 27.6ºC
According to Climatempo, an area of high pressure in the middle atmosphere should gain strength over the areas of Mato Grosso do Sul and Paraná, with migration to regions of the Southeast in the coming days.
The system should park in the center-south region, forming a kind of atmospheric blockage for the arrival of cold fronts in the Center-West and Southeast of the country and keeping the air dry and warm.
The World Health Organization (WHO) considers a heat wave to occur when temperatures remain 5ºC above average for more than five days in a row.
This scenario should happen in the central and western zone of the state of São Paulo, northwest of Paraná, throughout the state of Mato Grosso do Sul, in the Mineiro triangle and south of Goiás. In these regions, thermometers can exceed 35ºC.
In addition to hot days, early mornings tend to be stuffy in Mato Grosso do Sul, Paraná and west of São Paulo, due to the flow of hot air at the turn of April to May.
In the east of São Paulo, Minas Gerais, Goiás and the Federal District, temperatures are expected to be 3ºC to 5ºC above average, but with lower minimum temperatures due to dry air.
The attention goes to the thermal amplitude – the distance between the minimum and maximum – which can reach a difference of up to 22°C. Climatempo reports that meteorological models indicate that this pattern will continue until the first week of May.
In addition to the heat wave, the center-north of Paraná, the state of São Paulo – with the exception of the coast –, the northwest and Mineiro triangle, the south of Goiás and the center-east of Mato Grosso do Sul have alerts for relative humidity below of 30%. The WHO establishes humidity as ideal between 50% and 60%.
Rain alert
The National Institute of Meteorology (Inmet) issued an alert, valid until 10 am this Tuesday (23), of potential danger of intense rain in the North and Northeast of Brazil. There is a risk of rain of between 20 and 30 mm per day or up to 50 mm per day and intense winds (40 to 60 km/h).
Among the affected areas are the states of Acre, Amazonas, Rondônia, Mato Grosso, Pará, Tocantins, Maranhão, Ceará, Rio Grande do Norte and Paraíba.
There is also a warning of potential danger for accumulated rain, valid until 10 am on Wednesday (24), for the northeast, central-north, central-south and southern regions of Bahia. According to Inmet, the risk is of rain between 20 and 30 mm per hour or up to 50 mm per day, with a low risk of flooding and small landslides.
In parts of Rio Grande do Sul, Santa Catarina and Paraná, there is a potential danger alert, valid until 10am this Tuesday, for storms, with the possibility of rain between 20 and 30 mm per hour or up to 50 mm per day. There is a low risk of electricity cuts, damage to crops, falling tree branches and flooding.
(Published by Fábio Munhoz)
Source: CNN Brasil
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