Civil Defense updates alerts for the next few hours in RS Tuesday (21) will be marked by intense rain and the risk of storms in a large part of Rio Grande do Sul. With the movement of a cold front through the South Region, the instabilities should concentrate mainly in the Northern half of the state, where heavy rain, intense winds and the possibility of hail are expected. According to Climatempo Meteorologia, the areas most subject to storms are the Northwest, North, Planalto and Serra regions, as well as locations in the North of the Porto Alegre Metropolitan Region. At these points, storms can be accompanied by electrical discharges and gusts of wind that can reach 80 km/h. ? Access the g1 RS channel on WhatsApp The highest volumes of rain are expected between municipalities close to the border with Argentina and the Erechim region. In isolated places, accumulations can reach 100 millimeters, a scenario that increases the risk of flooding and flash floods. Storm forecast in RS for Tuesday Disclosure/ Climatempo Meteorology Climatempo's warnings range from yellow to purple, the highest degree on the scale. See: Yellow: Attention; Red: Alert; Pink: Danger; Purple: Extreme danger. The forecast is also confirmed by the National Institute of Meteorology (Inmet), which published a danger warning for storms valid until the end of Tuesday night covering most of the state. The warning predicts rain of between 50 and 100 millimeters per day, winds of 60 to 100 km/h and hail. There is a risk of interruption in the electricity supply, damage to plantations, falling trees and flooding. The agency also issued a warning of great danger for accumulated rain, also in force until the end of Tuesday night. According to the warning, volumes exceeding 100 millimeters may occur in one day, with the possibility of major flooding, river overflows and slope slides in vulnerable areas. Among the regions covered by Inmet alerts are the Metropolitan of Porto Alegre, the Northwest, the Northeast, the Western and Eastern Center, in addition to the Southwest and Southeast of the state. See the map below. Storm forecast in RS for Tuesday Disclosure/ Inmet What the weather will be like in the next few days On Wednesday (22), the cold front advances towards Santa Catarina, Paraná and Mato Grosso do Sul. Even with the system moving away, the atmosphere will continue to be favorable to the occurrence of rain showers in different regions of Rio Grande do Sul. The most significant rainfall should occur between the Northwest, the North and the Mountains, where the rain can be heavy at times and generate new high accumulations. In Campanha and the South Zone, rain tends to be more irregular and localized. The forecast indicates a more significant change on Thursday (23). With the entry of an area of ??high pressure associated with a mass of polar air, the weather becomes firm again in much of Rio Grande do Sul. The day may still start with many clouds, but, as the hours go by, the tendency is towards stabilization. Only the North Coast can record isolated showers of rain due to the remaining moisture in the atmosphere. VIDEOS: Everything about RS