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 March 2020 indicates widespread exceptional water surpluses in Russia from the Northern European Plain into the Western Siberian Plain. Exceptional deficits will persist on the Gulf of Ob and increase in the Nizhnyaya Tunguska River and the Upper Lena River regions. Surpluses are forecast for Kyrgyzstan, Tajikistan, and Kostanay in northern Kazakhstan.
Widespread exceptional water deficits in northern Russia observed in the prior three months are forecast to retreat May through July. However, drier than normal conditions will persist from the Yamal Peninsula to the Sea of Okhotsk. Exceptional surpluses are forecast in the Volga River Basin, the Irtysh, and between the Ob and the Tom Rivers. Surpluses will continue to emerge in many parts of Kazakhstan and are also forecast for eastern Uzbekistan, Kyrgyzstan, and Tajikistan. Moderate deficits are forecast for Turkmenistan and central Uzbekistan. Beyond July the forecast shows a similar geographic distribution of anomalies but with some changes in conditions.
Widespread and exceptional water deficits observed in Russia in the prior three months are forecast to retreat April through June. However, drier than normal conditions will persist from the White Sea to the Lena River. Surpluses are forecast from the Irtysh to the Tom River, along the Middle Ob River, and between the Volga River and the Belaya River. Surpluses will continue to emerge in the many areas of Kazakhstan as well as in Kyrgyzstan, eastern Uzbekistan, and western Tajikistan. Moderate deficits are forecast for western Uzbekistan and parts of Turkmenistan.
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