Forecast: Rio Grande do Sul has a warning for storms and tornadoes Instability continues to predominate in Rio Grande do Sul this Sunday (20), with heavy rain and storms forecast in practically all regions of the state. According to Climatempo Meteorologia, the slow advance of a cold front maintains favorable conditions for heavy precipitation, electrical discharges, isolated hail and winds that can reach between 70 km/h and 90 km/h. ? Access the g1 RS channel on WhatsApp The areas that require greater attention include the West, Campaign, Missions, Northwest, Center, South, Costa Doce, Metropolitan Region, Valleys, Mountains and the Middle and North coasts. In these places, rain can occur with heavy intensity throughout the day. The most worrying scenario is between the West, the Center and the Campaign, where predicted volumes vary from 40 to 100 millimeters, with the possibility of exceeding 150 millimeters in isolated points. The scenario can increase the risk of flooding, flash floods and other disturbances. READ ALSO: Cities exceed 35°C in the middle of winter in RS before the arrival of storms Porto Alegre breaks the temperature record for July since 1910 What to do in case of hail, gales, floods and landslides Storm forecast for all of RS on Sunday (19) Disclosure/ Inmet Rain continues on Monday Monday (21) should remain marked by unstable weather in most of Rio Grande do Sul. The cold front continues to act over the state and maintains the forecast of frequent rain, especially in the West, Missões, Center, Vale do Rio Pardo, Planalto and Metropolitan Region. In these areas, the expected accumulations are again between 40 and 100 millimeters, and may exceed 150 millimeters in points in the West, Missions, Center and Vale do Rio Pardo. Isolated storms are also not ruled out. The winds tend to lose intensity, but can still reach speeds between 60 km/h and 80 km/h, mainly in the northern half of Rio Grande do Sul. Despite the reduction in the risk of more severe storms, the possibility of intense rain and localized impacts remains. Instability in the North on Tuesday Rain in RS André Ávila/ Agencia RBS On Tuesday (22), the cold front advances towards the northern half of the state. As a result, the tendency is for a gradual improvement in weather conditions in the West, in the Campanha and in the South. On the other hand, the rain is gaining strength in areas of the Serra, the Planalto, the Missões and the North of Rio Grande do Sul. In these regions, accumulations may exceed 80 millimeters in isolated locations. The risk of tornadoes occurring is now considered low, but localized storms may still occur, accompanied by gusts approaching 90 km/h and possible hail. Meanwhile, the West and South should see periods of firmer weather throughout the day. VIDEOS: Everything about RS