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.
The forecast for Canada through March indicates water deficits in central Quebec, southern Ontario, southern Newfoundland, and northern reaches of western provinces. Surpluses are forecast across Ontario from the southern Kenora District to Quebec, Manitoba from Hudson Bay reaching southwest to Lake Winnipeg, northwestern Saskatchewan, and southern British Columbia.
The forecast for Canada through February indicates that exceptional deficits will shrink in Quebec, though a vast expanse will remain surrounding Lake Mistassini. Deficits will also persist in southern Newfoundland, New Brunswick, northeastern Manitoba, and northern British Columbia. Surpluses are forecast across Ontario from Kenora District in the west to Quebec; Manitoba from Hudson Bay reaching southwest to Lake Winnipeg; northwestern Saskatchewan; and southern British Columbia. After February much of Ontario will transition from surplus to mostly moderate deficit.
The forecast for Canada through January shows that exceptional deficit will persist in central Quebec but the extent of exceptional deficits will shrink in Quebec, southern Nova Scotia, and southern Newfoundland. Moderate deficits will persist in Southern Ontario. Exceptional surpluses are forecast in the southwestern corner of Northern Ontario and in the Columbia River Basin in southern British Columbia. From February through April many areas of eastern Canada will transition to normal, though large pockets of exceptional deficits will persist in Quebec and Ontario, and surpluses will continue to emerge in southern British Columbia.
Regions likely to encounter significant water deficits in the coming months include: the US South, Oaxaca (Mexico), Chile, Scandinavia, southeastern Ethiopia and southern Somalia, Iran, the Indian states of Karnataka, Kerala, and Gujarat, and Cambodia. Water surpluses are forecast for: the US Northwest and Upper Midwest, eastern North Carolina, southern British Columbia (Canada), Nicaragua, eastern Romania, southern Belarus, northeastern Poland, Nepal, Bangladesh, western Myanmar, Java, Shanghai, Fujian, and the Warrego River Basin (Australia). This watch list is based on ISciences Water Security Indicator Model (WSIM) Global Water Monitor and Forecast issued 9 November 2016.
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