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 through May indicates that exceptional water deficits will shrink in southern India but are expected along the Tungabhadra River through Karnataka and in northern Kerala. Moderate deficits are forecast from Gujarat to Andhra Pradesh, and more intense pockets in Madhya Pradesh. Areas of surplus include northern India and the Gangetic Plain, Bangladesh, Nepal, northern Pakistan and the Indus River system, and Afghanistan.
Through May, intense water deficits are forecast for India’s northern half, moderate deficits in the south, with exceptional conditions in Karnataka along the Tungabhadra River. Intense surpluses are forecast for Jammu and Kashmir, West Bengal, and the western Penner River Basin in India, as well as Bangladesh and Nepal. Surpluses of lesser severity are forecast for western Maharashtra. Intense deficits are forecast for Afghanistan and southern Pakistan. After May, deficits in India will be mild in the north, moderate in the south, and mild surpluses will emerge across the middle.
Exceptional water deficits will persist in southern India through February and will emerge in Gujarat and persist through May. Surpluses in the Chambal and Ganges Basins will transition to both deficits and surpluses through February, after which surpluses are forecast in West Bengal, Jharkhand, and Bihar. Surpluses are forecast in western Myanmar through February, and in Nepal and Bangladesh through May. Moderate deficits are expected in southern Pakistan through February.
Regions likely to encounter significant water deficits in the coming months include: Ohio, Pennsylvania, the Missouri and Yellowstone Rivers, southern Mexico, Chile, Central and Eastern Europe, North Africa, Zambia, Saudi Arabia, Yemen, Siberia, Gujarat, Cambodia, South Korea, and Tasmania. Water surpluses are forecast for: Minnesota, Wisconsin, Louisiana; Paraguay; European Russia and the Volga Basin; the Chambal, Yamuna, and Ganges Rivers in India; Bangladesh; western Myanmar; Laos; and the Yellow, Yangtze, and Pearl Rivers in China. This watch list is based on ISciences' Water Security Indicator Model (WSIM) Global Water Monitor and Forecast issued 8 September 2016.
Moderate water surpluses are forecast in India in an area fanning out from Gujarat. Deficits are expected in much of India’s southern half from Maharashtra south, and in central Odisha, north of Delhi, and the Thar Desert. Surpluses are forecast in eastern Afghanistan, Jammu and Kashmir, Sri Lanka, and Bangladesh. Deficits are expected to persist in western Afghanistan and southwestern Pakistan. Deficits are forecast to begin emerging in Bhutan and northeastern India states in July and increase through February.
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