According to Gabriel Rodrigues, a meteorologist at Portal Agrolink, the cold air mass is advancing across the southern region of Brazil. At the same time, intense heat continues to affect the center-north of the country, promoting temperatures above 37°C in the middle of winter, accompanied by extremely low relative humidity levels.
Cold air mass in the South
The forecast indicates that the cold air mass will remain behind the instabilities of the cold front, which today begins to move towards the ocean, maintaining heavy cloud cover in the east of Santa Catarina, east of Paraná, coast and south of São Paulo and Rio de Janeiro. There is still a possibility of isolated showers in the east of Santa Catarina, but the heaviest rains, with volumes between 7 and 15 mm, should occur in the east of Paraná, coast of São Paulo and Rio de Janeiro.
With the displacement of instabilities, the cold air mass enters the Southern Brazil. Today's dawn brought typical winter temperatures, with some spots registering negative temperatures. Even with the presence of sun during the afternoon, maximum temperatures should vary between 12°C and 15°C in Rio Grande do Sul, western Santa Catarina and southwest Paraná. In the mountainous regions and southern Rio Grande do Sul, these values will be even lower.
Rodrigues points out that, although the cold air mass is relatively intense, it is within what is expected for winter. The center of this polar air should be concentrated between Argentina and Uruguay. The tendency is that, starting tomorrow, temperatures will start to rise gradually, with projections indicating a weekend with high temperatures in the South region.
Heat in the Center-North
In the Center-North of Brazil, intense heat continues to predominate. In addition, areas from the northwest of SP, MS to the north of PI, CE, RN, and north of AM and Amapá are recording high temperatures. Therefore, thermometers are expected to register 32°C to 38°C in regions of Tocantins, Amazonas, Mato Grosso, Goiás, Piauí and Maranhão this Tuesday.
On the other hand, the large thermal amplitude in MT is also a highlight, where temperatures can vary from 13°C to 15°C and exceed 35°C in the afternoon. The low relative humidity levels, in the range of 15% to 20%, aggravate the situation. This has increased the risk of fires, especially for farmers who are advancing in harvesting operations, such as second-season cotton and corn.
Rainfall projection
In the medium term, there are signs of rain in the interior of Brazil at the beginning of the second half of August. However, Gabriel Rodrigues emphasizes that we are still far from this projection and the scenario could change significantly.
Source: Aline Merladete | agrolink
