The forecast through April indicates persistent, intense water deficits in Finland, southern Sweden, Estonia and Latvia. Other areas with pockets of fairly intense deficit include northern Germany, Luxembourg, Belgium, Netherlands, Denmark, and eastern Slovenia and Croatia. Moderate to severe deficits are expected in Belarus and across the border into European Russia past the Volga River. Regions with surpluses include Switzerland, Austria, the Balkans, Romania, eastern Ukraine, and Crimea.
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In the near-term through January, widespread water deficits are forecast though exceptional deficits will shrink. Areas of intense deficit include: the Balkans, Ireland, Germany, France, Luxembourg, Belgium, Netherlands, Denmark, southern Norway, Estonia, and Latvia. Areas of surplus include Norway, northern European Russia, Scotland, and Sicily.
Warmer than normal temperatures are forecast for much of Central, Eastern, and Northern Europe, extending into European Russia. Anomalies are expected to be exceptional, 40+ years return period, around the Baltic Sea and well into northern European Russia. Eastern Europe and the Balkans will be drier than normal.
The forecast through October indicates that exceptional water deficits will diminish considerably but widespread deficits will continue to affect many parts of Central, Eastern, and Northern Europe and will be especially intense in Finland, Estonia, and southern Germany. Moderate deficits will increase in France. Surpluses are forecast for Hungary, Serbia, Kosovo, Romania, Bulgaria, and Moldova. On the Iberian Peninsula, surpluses will diminish overall, but persist in many parts of Spain and may be exceptional in the south.
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.
The forecast through August indicates widespread water deficits of varying severity in Central, Eastern, and Northern Europe, with intense deficits sprinkled throughout but especially prevalent in Finland, Estonia, and Latvia. Surpluses will persist on the Iberian Peninsula and may be exceptional between the Tajo and Guadiana Rivers, and from Toledo south to Granada. In European Russia, surpluses ranging from moderate to exceptional are forecast for the Don River Basin and much of the Volga River Basin.
Water surpluses will retreat in Central Europe and the Balkans as deficits emerge. Deficits are also forecast for Northern Europe with exceptional deficits in Finland, Estonia, and Latvia. Intense surpluses are forecast for Hungary and for eastern Ukraine into Russia, with both deficits and surpluses in European Russia. Surpluses will persist on the Iberian Peninsula but retreat in France, with deficits emerging in Auvergne. Moderate surpluses will persist in Ireland, England, and Normandy.
Notable in the near-term forecast is the retreat of water surplus in Central Europe and a transition to moderate deficit. Deficits in Northern Europe are expected to persist and increase, with exceptional deficits in Finland, Estonia, and Latvia. Surpluses will remain intense in Hungary, southern Romania, Moldova, and eastern Bulgaria, and will increase in Ukraine. Surpluses will continue to emerge in Ireland and the UK, and will spread on the Iberian Peninsula. After June, mild deficits are forecast for Central Europe, more intense deficits in Northern Europe, and surplus in the western Iberian Peninsula.
Regions forecast to have significant water deficits for the 12-month period from January 2018 through December 2018 include: the US Southwest, Brazil, southern Venezuela, northern Africa, Gabon, Zambia, Finland, Saudi Arabia, Iraq, Iran, and Afghanistan. Areas with a forecast of significant water surplus include: Idaho, southern British Columbia, Tanzania, Hungary, southern Romania, and Ukraine. This Watch List is based on ISciences Water Security Indicator Model (WSIM) run on 10 April 2018.
In the near-term through May, water surplus in Central and Eastern Europe and European Russia is expected to shrink and downgrade, though remain widespread. In France and the UK, however, surpluses will increase in extent. Exceptional deficits will continue to emerge in Finland, Estonia, Latvia, and a pocket in central Sweden. A band of deficit conditions will persist across southern Italy, but deficits on the Iberian Peninsula will shrink and downgrade – with some surplus conditions emerging. After May, the forecast indicates a transition away from surplus to mild deficit in many areas.