Exceptional deficits throughout Africa will persist in northwestern, northern, and central countries. Surpluses will remain along the Sahel.
Exceptional deficits will remain throughout the Amazon and the Boliviarian Nations. Similar deficits will occur in northeastern coastal regions of Brazil, in Argentina, and in Chile.
The forecast for November 2024 expects significant water deficits for the 12-month period of August 2024 through July 2025 in northern South America, Canada, northwestern and eastern China, and northern to central Africa. Areas expected to experience surplus include central Africa, South Asia, and Central America.
With the release of WSIM v3 and 8 years of additional data, we reevaluate drought risk in the Amazon and the historic drought that continue to affect the region.
The forecast indicates that extreme to exceptional surpluses in northern Australia will diminish, though will still remain present in some regions of Northern Territory. Exceptional deficits across the continent will similarly dissipate, though severe deficits are expected along the southern coast of Victoria.
Through January 2020 deficits will shrink and downgrade considerably. Severe to extreme deficits are, however, forecast for Tasmania and eastern Australia from Melbourne north through Canberra, moderating near Gold Coast in Queensland and continuing past Brisbane. Deficits in New Caledonia will downgrade from exceptional but will be severe to extreme.
The forecast through December indicates that exceptional water deficits will shrink and downgrade in Australia, but a broad path of severe to extreme deficit is forecast from Brisbane in the east past Melbourne in the south and in Tasmania. Nearly normal water conditions are expected in New Zealand. Severe to extreme deficits will persist in New Caledonia.
The forecast through November indicates severe to exceptional water deficits in eastern Australia from Rockhampton, Queensland to Melbourne, including the eastern Murray-Darling Basin. Deficits will shrink in Tasmania but will be severe. Nearly normal water conditions are expected in New Zealand. Severe to extreme deficits will persist in New Caledonia.
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