Areas at severe risk (in red) in RS may record storms with hail and the possibility of tornadoes Disclosure/ Civil Defense of RS The Civil Defense of Rio Grande do Sul issued, this Friday (17), a warning for strong instability until Monday (20). The most worrying scenario is predicted for the weekend, especially in areas classified as severe on the weather map, which appear in red, such as Santa Maria, São Gabriel, Alegrete, Santiago and São Borja. See above. ? Access the g1 RS channel on WhatsApp In these regions, high volumes of rain are expected to be concentrated in a short period of time between Saturday (18) and Sunday (19), with greater intensity predicted for the 19th. There is also the possibility of hail and wind speeds above 90 km/h. Find out what to do in case of extreme weather according to the Civil Defense READ ALSO: Porto Alegre breaks temperature record for July since 1910 Gale knocks down poles and leaves more than 800 houses without power in Bagé Hail and heavy rain hit city in the south of RS Areas in orange can also be hit by storms, with a risk of hail and strong winds. Furthermore, Civil Defense does not rule out the occurrence of isolated tornadoes during the period. This Friday (17), storm conditions will mainly affect the West, Campanha and South regions. In these places, heavy rain showers, hail and strong gusts of wind may occur. Another factor to pay attention to is the wind, which can blow between 70 km/h and 90 km/h from the early hours of Friday until Sunday, even outside of stormy times. Instability is expected to remain over the state at the beginning of next week. For Monday (20), the forecast continues to indicate the possibility of storms with heavy rain, hail and intense winds. VIDEOS: Everything about RS