A significant retreat of water deficits is forecast October through June, but through December exceptional deficits are expected in northernmost Brazil and into neighboring countries. Deficits are also forecast north of Lake Titicaca in Peru through La Paz and Cochabamba, Bolivia and into Argentina. Widespread, primarily moderate deficits are predicted in much of eastern Brazil, which may be more severe along the coast of the State of São Paulo. Surpluses are forecast in central Colombia, northern Peru, northern Bolivia, eastern Argentina, Uruguay, and O’Higgins Lake in Patagonia. After December widespread moderate surpluses are forecast in the northern Amazon Basin
South America: Widespread water deficits in Brazil to persist but moderate
The near-term forecast indicates that widespread water deficits will persist, though moderate, in Brazil. However, intense deficits are forecast for: Brazil’s far north into Suriname and French Guiana; Ceará and Rio Grande do Norte; north-central and southern Venezuela; Cochabamba, Bolivia; northern Chile; and Tierra del Fuego. Surpluses will persist in La Pampa and Buenos Aires Provinces, Argentina, and will emerge in Uruguay. After November deficits will retreat to eastern Brazil and surpluses will emerge in the northern Amazon Basin.
South America: Exceptional water deficits in Brazil forecast to retreat to the north after September
Recently observed conditions across the whole of South America are expected to persist through September with a slight decrease in the extent of exceptional water deficits in much of Brazil north of Rio de Janeiro. Surpluses in eastern Paraguay and southern Brazil should transition to near-normal conditions during this period, but exceptional surpluses are expected to persist in La Pampa and Buenos Aires Provinces in Argentina. After September conditions are forecast to improve across the continent though exceptional water deficits will persist in Amapá and northern Pará, Brazil and in nearby northern regions.