Atmospheric blocking continues to prevent cold fronts from advancing inland

An atmospheric blockage continues to prevent the movement of cold fronts into the interior of Brazil this weekend. As a result, the forecast is that the weather will remain firm and dry from Paraná to the southern part of the North Region, according to Climatempo.

However, the week ends with more concentrated rain in the extreme parts of the country. The action of the intertropical convergence zone stimulates many rain clouds over the AM, RR, and AP and a maritime infiltration also brings a lot of humidity to the Northeast coast.

This Friday (21) will be marked by unstable weather and thunderstorms with many rain clouds over the east, north and northwest of Rio Grande do Sul, due to the action of low pressure in Paraguay, combined with the circulation of winds at levels mid and low levels of the atmosphere.

See the weather forecast for this Friday (21)

South region

This Friday should be sunny, with little cloud cover and firm weather in Paraná. Instabilities still continue between SC and RS. The west of Santa Catarina should have sun with lots of clouds and rain at any time. In Florianópolis, the showers are faster and more irregular and the sun appears a little more.

In the south, east, central-north and northwest of RS, the weather remains closed and rainy and rain can occur at various times accompanied by lightning and gusts of wind. The capital, Porto Alegre, is at risk of storms.

Southeast region

The Southeast region continues to be influenced by dry air. The day should be sunny and clear in the interior of SP and Triângulo de MG, with high temperatures. The first official day of winter has no rain forecast in the capitals.

Furthermore, the forecast is that there will be a little more cloud at night in the city of SP and on the coast of São Paulo. According to Climatempo, it could rain quickly in the north of ES and in the Jequitinhonha Valley.

Midwest region

This Friday’s forecast for the entire Midwest region is that it will continue to be under the influence of dry air. However, the presence of low pressure in Paraguay should drive a little more wind to the west and south of MS.

The week should end sunny with moderate gusts in the Pantanal. There is still a risk of fires and impaired visibility due to smoke. The forecast is that it will not rain in any area and between MT and GO and humidity remains on alert.

Northeast Region

For the Northeast region, the rain should continue to be more concentrated on the north and east coast, due to the humid winds blowing from the sea. The day should be sunny with increasing clouds and rain at any time on the coast of PB, PE and AL.

The south coast of BA, between Ilhéus and Porto Seguro, may face heavy rain with the risk of some storms. In the interior of RN, CE, southern MA, PI and western BA, the air should remain drier, with a lot of heat and low humidity. The forecast is for rain in the form of showers on the coast of MA and CE.

North region

Rain showers will still continue over the north coast of the country for this Friday (21). The sun should appear, but it may rain at various times of the day in the north of AM and RR and in the east and north of AP with a risk of storms.

Sun and faster rain showers cannot predominate in the east of AC and in Manaus. As for Belém, the week ends with more irregular showers. It shouldn’t rain and the day will remain sunny with high temperatures and low air humidity in the west of AC, in the state of RO, south of AM and PA and in TO.

Supervision by André Rigue