A significant retreat of exceptional deficits is forecast November through January, though deficits are forecast for much of Brazil’s northern half and along its southeast coast from São Paulo to Rio de Janeiro. Intense surpluses are forecast for central Colombia and Venezuela’s northeastern coast into Trinidad and Tobago. Moderate surpluses are forecast for northern Peru, northern Bolivia, southern Paraguay, and Buenos Aires Province, Argentina. After February, a transition from deficit to moderate surplus is forecast for northern Amazonian Brazil.
South America: Exceptional water deficits persist in central Brazil
South America is forecast to transition away from widespread exceptional water deficits after October. However, until then exceptional deficits are forecast for much of Brazil north of Rio, along with deficits of varying severity elsewhere in South America. By December the extent of exceptional water deficits in Brazil will diminish except along the Amazon River and in Amapá and Maranhão. From November on moderate deficits are forecast in Colombia, Venezuela, Guyana, Suriname, French Guiana, Ecuador, Peru, Chile, and Rio Grande do Sul, Brazil.
South America: Water deficits to persist in central Brazil, Chile, southern Argentina
Exceptional water deficits are forecast for much of northern and central Brazil from July into October. From October to December deficits will diminish in central Brazilian states but persist across the north, and widespread deficits will emerge in other countries in northern South America. Deficits will also persist in Peru, Chile, and southern Argentina.