Polar air enters the south and the extratropical cyclone moves away

A cold front formed on Wednesday 13 September over southern Brazil and Paraguay, from areas of heavy clouds which had already been causing heavy rain in Rio Grande do Sul since Tuesday 12 September.

Together with the organization of the cold front, the formation of an extratropical cyclone also occurred. This cyclone formed last night, September 13, on the coast of Rio Grande do Sul, and during this Thursday the 14th it will move rapidly towards the high seas, away from southern Brazil.

The cyclone does not pass over the states of the Southern Region and does not advance towards the South-East.

The letter B in the satellite image represents the center of low atmospheric pressure associated with the extratropical cyclone. The approximate locations of the low pressure center are indicated in the image.

Approximate location of the atmospheric low center of the extratropical cyclone that formed on 9/13/23

on the coast of Rio Grande do Sul (Art: Climatempo)

Read the comment by meteorologist Josélia Pegorim

Cold polar air enters southern Brazil

OR Cold air of polar origin advances over southern Brazil and the heavy clouds will leave the Region throughout this Thursday 14 September. Rain will taper off and off throughout the afternoon and evening. It’s cold all day in southern Brazil.

OR Extratropical cyclone formed last night on the coast of Rio Grande do Sul it moves rapidly towards the open sea. But gusts of up to 80 km/h can still occur on the south coast of Santa Catarina and on the north coast of Rio Grande do Sul, which tend to decrease in the afternoon as the extratropical cyclone moves away.

To the Rio Grande do Sul, It still rains at dawn, in the morning and part of the afternoon on the coast, in the Mirim and dos Patos lagoons, in Grande Porto Alegre and in the mountains. The sun will begin to appear in the afternoon and the rain should stop overnight. In the center, north and south of the state, it rains early in the morning and in the morning, but it stops raining in the afternoon and the sun appears. In the central-western part of Rio Grande do Sul it is already a day without rain, with the sun appearing in the morning.

To the west, center and south Santa Catarina, it rains early in the morning and in the morning, it stops raining in the afternoon and the sun appears. In the east of Santa Catarina, in the northern plateau and in the Itajaí valley, the sun appears in the morning between many clouds

To the Parana, it is still raining in the north and east of the state, but sunny periods may occur in the afternoon. In other regions of the state the sun appears among many clouds and it no longer rains.

Source: Terra

Rose

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