Drought-stricken areas across southern Brazil and northeastern Argentina will be looking forward to rain through the end of the week.
A front moving northward through Argentina will stall near Porto Alegre, Brazil, allowing days of rain to help make up the deficit.
This means daily rain will be likely across the Brazilian states of Rio Grande do Sul and Santa Catarina, as well as the Argentinian provinces of Misiones and Corrientes. Rain will move in late on Tuesday and will continue across the area through at least Friday.
"Rainfall amounts on the order of 12 to 25 mm (0.5 to 1.0 inches) are expected daily across this area," AccuWeather Senior Meteorologist Rob Miller said.
"A few thunderstorms developing along the front could bring some locally heavier rain," Miller said. "Too much rain, and instead the area could end up with flash flooding."
Although several rounds of rain are expected, the day most likely to produce heavy rain will be Wednesday. As the weekend approaches, rain will shift slightly farther north, bringing rain into Curitiba, Brazil.
It is not unusual for there to be some periods of wetter weather as parts of South America transition into spring.
"The clash of warming air from the north with cooler air from the south produces a big enough contrast to produce some heavier rain," Miller added.
As the Southern Hemisphere approaches the heart of spring, the rainy season will wind down over much of South America. However, it looks like this front will bring higher-than-normal rainfall.
AccuWeather Senior Meteorologist Jason Nicholls expects this rainy pattern to impact crop growers across the states of Rio Grande do Sul and Santa Catarina.
"The wetter-than-normal pattern over the next couple weeks is likely going to cause problems for winter wheat harvesting that is getting underway," Nicholls said.
"The rains will be good for boosting soil moisture levels in advance of spring planting, however." Nicholls added.
The stormy weather, as predicted by AccuWeather meteorologists earlier in September, is expected to continue throughout the spring for eastern Argentina, Uruguay and southern Brazil.