The forecast through July shows water conditions similar to the prior three months: large, widespread pockets of exceptional deficits in Brazil, and deficits along many Brazilian rivers. Deficits in southern Venezuela are forecast to increase in severity while those in the north recede. Severe to exceptional deficits are expected to persist in northern Chile. Surpluses are forecast to emerge in Bolivia east of Lake Titicaca; surpluses in eastern Paraguay will increase; and surpluses will persist in Buenos Aires, La Pampa, and Neuquén Provinces in Argentina.
South America: Water deficits in eastern Brazil, surpluses in northern Peru
Though the extent of water deficits in South America is expected to shrink March through May, deficits are forecast in central and eastern states of Brazil, western French Guiana into eastern Suriname, Bolivia, Chile, and coastal Peru. Surpluses are forecast in Paraguay, in a line down western Argentina, in central Buenos Aires Province (Argentina), in Rio Grande do Sul and Paraná (Brazil), northern Peru, northern Guyana, Suriname, and parts of Ecuador. From June through August deficits are forecast to persist across Brazil’s mid-section and emerge in Piauí and across northern Brazil. Deficits are also forecast for Bolivia, Colombia, Venezuela, Guyana, Suriname, French Guiana, coastal Peru, and northern Chile. Surpluses will persist in aforementioned areas of Paraguay and Argentina.
South America: Water deficits to persist in central, eastern Brazil & in Chile
Though the extent of water deficits in South America is expected to shrink overall February through April, severe to exceptional deficits are forecast in eastern Brazil as well as pockets in some western states. Deficits in Bolivia are forecast to shrink in extent but large pockets will persist, and the extent of deficits in Chile will shrink slightly. Surpluses will continue to emerge in central and northeastern Argentina; Rio Grande do Sul, Brazil; northern Peru; and eastern Colombia. From May through June deficits will persist in eastern Brazil but much of the Amazon Basin will transition to near-normal. Deficits along Peru’s coast will increase in intensity, becoming exceptional.