The deepening of a low pressure system should bring instability to the southern region this week, especially to Rio Grande do Sul. On the gaucho coast the winds can reach 100km/h in some places, warns the Civil Defense. 
Time begins to get worse on Monday (18), expected to rainfall of 5 to 30 millimeters (mm) in the gaucho regions of West, Campaign, Missions and Center, which can reach 40mm in some west locations.
On Tuesday (19), there is a forecast of isolated thunderstorms, with eventual drop in hail, punctually intense rain, electric discharges and gusts of wind in the west, campaign, south, missions, northwest, north, center and part of the coast and southern coast.
The rains can exceed 60mm in some gaucho regions. On Wednesday (20), the gusts of wind are between 45 and 80 km/h by RS, and may reach 100 km/h on the coast of Rio Grande do Sul. There is also a possibility of lightning storm.
With this, the accumulated from Monday to Tuesday in some gaucho regions can reach 150mm of rain, quickly and punctually, increasing attention with flooding.
The National Institute of Meteorology (Inmet) issued an orange alert, of imminent danger, to the coastal winds on the Rio Grande do Sul and the south coast of Santa Catarina, with possible advancement of dunes on the buildings. The conditions should last from 6 pm from Tuesday to 9 pm Wednesday.
In late July, the passage of an extratropical cyclone caused damage to RS, with winds that reached 105km/h in Porto Alegre. At this speed, the wind is capable of causing detachment, structure collapses and power offspring. At the time, more than 400,000 gaucho customers were out of power.
Rest of the country
For the rest of the country, soldiers are also expected in Paraná, Santa Catarina and Mato Grosso do Sul. In the border region, from MS to Acre, rains are expected with isolated showers throughout the week.
In the central area of the country, including most of the Midwest and the Southeast, the weather should follow firmly throughout the week, and temperatures should remain high, reaching 38ºC in Cuiabá, for example.
With the exception of the southern coast of Bahia, the week is expected to be cloudy or with sun between clouds in most of the Brazilian coast. Already in the far north, in Roraima and the northern parts of Amazonas, Pará and Amapá, the heat combined with high moisture causes daily precipitation.
