Central Asia & Russia: Water surpluses forecast in Kazakhstan and central Russia, deficits in Turkmenistan, Uzbekistan, Tajikistan

Exceptional water surpluses are forecast along rivers in Kazakhstan and in central Russia from the Volga River through the Ural Mountains to the western edge of the Central Siberian Plateau (below). Water deficits are expected in Turkmenistan, Uzbekistan, and Tajikistan and are forecast to persist through October.

A lake formed in front of Moscow's famous Bolshoi Theatre as heavy rains - more than 22mm in 24 hours - turned roads into rivers, trapping cars and melting knee-deep snow into muddy torrents. In Kazakhstan regional emergency management teams are preparing for spring flooding by reinforcing river banks, discharging reservoirs, and stocking shelters.

The 3-month composites (below) for the same 12-month period show the evolving conditions in more detail. Moderate to severe deficits are forecast to spread in Turkmenistan, Uzbekistan, and Tajikistan from February through April, persist through October, and affect rivers in the region from July through September. Both deficits and surpluses are expected in Russia between the Urals and the Central Siberian Plateau May through October.

(It should be noted that forecast skill declines with longer lead times.)