The forecast through February indicates intense water surpluses on the Ob, Vakh, Pur, and Taz Rivers in Russia. Surpluses will be widespread in the Middle Ob region and the Yenisei River watershed. Severe to extreme deficits are forecast for western Kazakhstan, reaching across the northern border into the Ural River watershed in Russia. Surpluses are expected in northern Kazakhstan, eastern Kyrgyzstan, western Tajikistan, and along the Zerafshon River in Ubekistan. Deficits are forecast for eastern Tajikistan and central Kyrgyzstan.
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The forecast through January indicates intense water surpluses for Russia’s Ob River, Yenisei River watershed, the Nizhnyaya Tunguska River region, and along the Vakh, Pur, and Taz Rivers. Surpluses in the Northern European Plain will intensify, becoming exceptional, and intense surpluses will re-emerge in the Volga Uplands. Deficits will intensify in the Ural River watershed of Russia and Kazakhstan. In Turkmenistan, severe deficits will persist along the Harirud River in Turkmenistan.
The forecast through December indicates that prior exceptional water deficits in Turkmenistan, Uzbekistan, western Kazakhstan, and the North Caucasus region will downgrade considerably, leaving primarily mild conditions. In Russia, surpluses will increase between the Ob and Yenisei Rivers and will be extreme to exceptional. Moderate deficits are forecast in the southern Ural Mountains, with surpluses to the west. Surpluses will re-emerge in the Upper Don River watershed.
The forecast through October indicates that water deficits will moderate overall in Central Asia, though conditions may be more severe along the Amu Darya River in eastern Turkmenistan, the Zaravshan River in eastern Uzbekistan, and the Ural River through northwestern Kazakhstan into Russia. Moderate deficits will emerge in central Kazakhstan. In Russia, deficits will downgrade in the Caucasus. Surpluses are forecast along the Ob, Irtysh, and Ishim Rivers and in the Tom River watershed, and wide band of surplus will extend to the Gulf of Ob.
Regions forecast to have significant water deficits for the 12-month period from May 2018 through April 2019 include: the US Pacific Northwest, southern Mexico, Brazil, Chile, Central and Northern Europe, northern Africa, and Afghanistan. Areas with a forecast of significant water surplus include: Tanzania, Kenya, Bangladesh, Myanmar, Laos, and Sichuan, China. This Watch List is based on ISciences Water Security Indicator Model (WSIM) run on 9 August 2018.
In Central Asia, water deficits will increase and intensify in Turkmenistan, Uzbekistan, western Kazakhstan, and Tajikistan and extreme deficits will persist in central Kyrgyzstan. Surpluses are forecast for northern Kazakhstan and south of Lake Balkhash. In Russia, deficits will moderate in the Caucasus and North Caucasus. Severe deficits will increase along the Ural River around Orenburg. Surpluses are forecast along the Ob, Irtysh, and Ishim Rivers and the Upper Ob and Tom River Basins. Moderate surpluses are forecast for the Northern European Plain.
Through July, water surpluses will shrink in European Russia. The Lower Ob will transition from surplus to mild deficit, moderate to exceptional deficits will develop in the Middle Ob region, and surpluses in the Upper Ob region will downgrade. Surpluses will downgrade in the Tom River Basin, upgrade on the Ishim River, and persist on the Irtysh. Intense surpluses are forecast for northern Kazakhstan. Deficits are forecast for Turkmenistan, eastern Uzbekistan, southern Kyrgyzstan, and Tajikistan, and may be severe along the Amu Darya and Zaravshan Rivers.