Robust storms to bring flash flooding, damaging winds to portions of South America AccuWeather 1/11/2021 Adam Douty A cold front sweeping across Argentina, Uruguay, Paraguay and southeastern Brazil can spark strong thunderstorms on Monday and Tuesday leading to flash flooding and locally damaging wind gusts. The threat is first expected to develop on Monday when these storms can stretch from Uruguay into Entre Rios, Santa Fe and northern Cordoba. While a few showers and a thunderstorm are expected in Buenos Aires and Montevideo, the threat of the heaviest storms is expected to be to the north and west of these cities.