The forecast through July indicates that water surpluses will shrink considerably but anomalies will persist in the Dakotas, Nebraska, Tennessee, Mississippi, Alabama, and Georgia. Deficits will increase in the West, Southwest, and Pacific Northwest, but will generally spare southern California.
United States: Water surplus in N. Plains, TN, Carolinas, Deep South
The forecast through May indicates widespread water surpluses in the Northern Plains States and Upper Midwest, severe-to-exceptional in the Dakotas and Nebraska. Moderate surpluses are expected in Tennessee, the Carolinas, Mississippi, Alabama, and Georgia. Areas of deficit include central Colorado, southeastern Texas, and northern California.
ISciences Worldwide Water Watch List June 2018
Regions forecast to have significant water deficits for the 12-month period from March 2018 through February 2019 include: southern Mexico, northern Brazil, North Africa, Europe, Afghanistan, and Southeast China. Areas with a forecast of significant water surplus include: Montana and Idaho (US), Tanzania, Kenya, Uganda, Spain, and Bangladesh. This Watch List is based on ISciences Water Security Indicator Model (WSIM) run on 7 June 2018.
United States: Exceptional water deficits to retreat in Northern Plains States
After July the Northern Plains States should see a significant retreat of exceptional water deficits. Surpluses will persist in the Gulf region, diminish in the Great Lakes States, and transition to mild deficits in Virginia and North Carolina. After October moderate water surpluses will re-emerge in most of the Great Lakes States and in the Ohio River Valley, and pockets of surplus will continue to emerge in Idaho and surrounding states. Deficits in the southern states of the East Coast are expected to ratchet up slightly to moderate intensity and emerge in Florida.
United States: Water surpluses forecast to increase in central Gulf Coast
The near-term forecast through September shows a distribution pattern of water anomalies similar to the prior three months with some decrease in intensity. However, surpluses are forecast to increase in the central Gulf Coast. Beyond September water anomalies will continue to become less severe, though pockets of exceptional surplus will persist in Idaho and its neighbors. The forecast through March 2018 indicates the emergence of primarily moderate surpluses in many parts of the country.