Cold continues in Paraná with firm weather this Thursday, July 9th Despite a small rise in temperatures, Paraná dawned this Thursday (9), for the second day in a row, with frost. The new records were made in the center-south of the state, in cities such as Guarapuava and General Carneiro, and also in part of Campos Gerais, such as Ipiranga, for example. While on Wednesday (8) the thermometers in Paraná reached -2.3ºC, in General Carneiro (southern PR), this Thursday (9) the lowest minimum temperature recorded in the state - and the only negative temperature - was -1.7ºC, in the same city. Both information is from the National Meteorology Institute (Inmet) meteorological station. See the complete table of minimum temperatures below. ? Follow the g1 Ponta Grossa and region channel on WhatsApp Frost in Guarapuava this Thursday (9) Eduardo Andrade/RPC The frosts were already predicted by the Environmental Technology and Monitoring System (Simepar), due to the passage of a mass of polar air through the state. So far, the coldest record of the year in Paraná was -4.8ºC, in General Carneiro, on June 25th. On this day, the thermal sensation reached -6.3ºC in the city, according to Simepar's calculation. ??Frost: What is it and what conditions are necessary for the formation of the phenomenon? For this Thursday (9), the forecast is that the action of a high pressure center over Paraná will keep the atmosphere stable, inhibiting the formation of clouds and favoring the predominance of open skies throughout the state. See the weather forecast by region below. "Throughout the afternoon, the greater incidence of solar radiation promotes an increase in temperatures, with maximums close to 20°C in most regions. In the northwest, warming is more significant, with temperatures approaching 30°C. During the night, temperatures begin to decline again, but less intensely compared to previous days", says Simepar. On Friday (10), says the agency, instability returns to the state - and, as a result, the frosts are replaced by rain. "A new cold front moves across the ocean near Uruguay and Rio Grande do Sul, together with a flow of humidity and heat coming from the north of the country, influencing the weather conditions in part of Paraná. Initially, areas of instability will act between the west and southwest, with rain showers accompanied by thunderstorms. Throughout the day, instability advances to the Center-South, South, Campos Gerais and East regions." Health: Cold and lack of sun can cause depressive disorders; see where, historically, it rains the most and cools down in Paraná Frost in General Carneiro, in Paraná Ana Maria Mello Jekel Read also: Climate phenomena: Paraná was hit by 8 tornadoes in less than 9 months; see where and the differences between them Accident followed by crime: Truck overturns and cargo is looted by 80 people while driver is rescued with serious injuries Theft: Tree thieves are caught cutting down forest that takes seven years to grow Minimum temperatures recorded in Paraná this Thursday (9) g1 ??Weather forecast for Paraná Check below the weather forecast updated by Simepar this Thursday (9): Thursday, July 9th Thursday, July 9th Reproduction/Simepar Friday, July 10th Friday, July 10th Reproduction/Simepar Saturday, July 11th Saturday, July 11th Reproduction/Simepar Sunday, July 12th Sunday, July 12th Reproduction/Simepar Most watched videos on g1 Paraná: Read more news from the region on g1 Campos Gerais and Sul