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 August 2019 indicates that water deficits will remain intense in Northern Europe, especially in Finland, Estonia, and Latvia. Other areas of intense deficit include Luxembourg, northern Germany, central France and the Loire River, and along the Drava River through Austria. Areas of surplus include Scotland, central Italy and around the Adriatic Sea, Serbia, and northern Romania.
Water deficits will shrink considerably in Central and Eastern Europe through March, but intense deficits are forecast for Finland, Sweden, Slovenia, Croatia, and Macedonia. Severe deficits will emerge on the Iberian Peninsula and deficits of varying intensity are forecast for Estonia, Latvia, northern Belarus, Italy, pockets of the Balkans, and central European Russia. Areas of surplus include northern European Russia, southern Sweden, pockets of the UK, Switzerland, Austria, Czech Republic, Romania, and scattered pockets of Central and Eastern Europe.
Though the extent and intensity of water deficits in Europe will diminish considerably through February, severe to exceptional anomalies are forecast in Finland, pockets of Sweden, southern European Russia, Denmark, Netherlands, Belgium, Luxembourg, western Germany, and eastern Slovenia and the Sava River Basin in Croatia and northern Bosnia-Herzegovina. Areas of surplus include Norway, northern European Russia, and the United Kingdom.
The forecast through September indicates that widespread water deficits in Central, Eastern, and Northern Europe will downgrade from exceptional levels in most affected regions but remain intense, especially in Central Europe and Finland. Deficits are expected to be extreme on many rivers including the Oder, Elbe, Danube, and Rhine. Surpluses are forecast for the Iberian Peninsula, parts of Eastern Europe and the Balkans, and European Russia.
Exceptional water deficits are expected to nearly disappear from October on, but pockets will remain through December in central Finland and the Norwegian Sea coast. Moderate to severe deficits are forecast for the remainder of Finland and moderate deficits for much of Southern Europe. A vast expanse of surpluses is forecast in European Russia, and surpluses are also predicted in Poland, Slovenia, Croatia, UK, and southern Norway. From January through March surpluses are forecast to increase across Northern Europe, particularly in European Russia, while deficits persist across Southern Europe.
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