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.
Water deficits will shrink and downgrade considerably in Australia through March 2020. Moderate deficits are expected in the southeast from Brisbane, growing more intense as they reach into southern Victoria and Tasmania. Surpluses are forecast in northwestern Western Australia. Deficits will downgrade in New Caledonia.
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 March indicates that the intense water deficits that have dominated many parts of Australia in prior months will diminish considerably. However, severe to exceptional deficits will persist in Tasmania; along the southeastern coast of Australia from Adelaide past Melbourne; in the Strzelecki Desert in northwestern New South Wales; around Darwin in Northern Territory; and in the Blackwood River region near Busselton in the tip of Western Australia.
The forecast through December indicates that intense water deficits which have dominated much of Australia in prior months will retreat from most regions except the southeast. Deficits will be exceptional in Tasmania, and severe to exceptional along the southeast coast from Adelaide through Victoria and past Canberra. Moderate to severe deficits are forecast for New Zealand. Deficits in New Caledonia will moderate.
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