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 indicates that exceptional deficits will persist in northwestern China, southwestern Mongolia, and in the Yangtze River Basin. Surpluses of severe to exceptional intensity are expected to appear in western, southern, and northeastern regions of China.
The forecast through July indicates that water surpluses will shrink considerably overall but remain widespread and intense in Pakistan and Afghanistan. Areas of surplus in India include the Far North, central Rajasthan, and Karnataka. Deficits will intensify in India’s Far Northeast and emerge in coastal Maharashtra.
Through January 2020 surpluses are forecast for much of the region including exceptional anomalies in India from Mumbai into Kerala, the Narmada River Basin, and central Rajasthan. Surpluses will remain intense throughout Bangladesh and will increase in Afghanistan, with exceptional anomalies forecast in the Upper Helmand River Watershed and around Mazar-e Sharif.
The forecast through September indicates that many parts of India will return to normal water conditions. However, deficits are forecast in southern Karnataka and in Kerala and Tamil Nadu. Moderate surpluses will increase in Gujarat and western Maharashtra. Widespread, intense surpluses will persist in Afghanistan, and surpluses in Pakistan will shrink but persist.
The forecast through August 2019 indicates persistent, widespread water surpluses in Afghanistan with exceptional surpluses around Mazar-e Sharif and from Kandahar to Kabul. Exceptional deficits will emerge in southwestern Pakistan. In India, mild deficits or normal water conditions are forecast for most of the country, with moderate deficits in Kerala, northern Tamil Nadu, southeastern Madhya Pradesh, and Uttaranchal. Moderate surpluses will emerge in central Gujarat.
The forecast through July indicates exceptional water deficits in coastal Maharashtra, and severe to extreme deficits in a vast stretch across central India including much of Madya Pradesh, Maharashtra, Chhattisgarh, and southern Odisha. In the south, deficits will downgrade in Tamil Nadu but intensify in Karnataka. Surpluses will remain intense and widespread across central Afghanistan. Exceptional deficits will emerge in southern Pakistan.
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