The forecast through June indicates widespread water deficits in the West, Southwest, and Texas with exceptional deficits, particularly in Texas and New Mexico. Deficits are also forecast in Virginia and the Carolinas, and surpluses from the Dakotas into Minnesota.
ISciences Worldwide Water Watch List August 2021
Regions forecast to have significant water deficits for the 12-month period of May 2021 through April 2022 include: the U.S. West and Northern Plains, Canada, Chile, North Africa, Central Asia, and Hokkaido, Japan. Areas with a forecast of significant water surplus include: Northeast China, the Krishna River Basin in India, and the Yenisei River Basin in Russia. This Watch List is based on ISciences Water Security Indicator Model v2 (WSIMv2) run on 4 August 2021.
United States: Widespread water deficits will persist in the west
United States: Exceptional water surpluses forecast for S. Dakota
The forecast through August 2019 indicates persistent water surpluses in a wide path through the center of the country in the Mississippi River Basin and well into the Missouri, Arkansas, and Red River Basins, including exceptional anomalies in South Dakota. Surpluses of varying intensity are expected in the Rockies, central Arizona, California, Oregon, and in the Northeast. Deficits are forecast for pockets of Washington, North Dakota, Wisconsin, and southeastern states.
United States: Widespread water surpluses to persist WI to TX
Though exceptional water surpluses will diminish through March, widespread and intense conditions will persist from Wisconsin through southern Minnesota, Iowa, eastern Nebraska, eastern Kansas, central Oklahoma, and central and eastern Texas. Surpluses along the Eastern Seaboard will also persist but moderate, while conditions in the Ohio River Valley normalize. In the western US, mild deficits are forecast punctuated by pockets of more intense anomalies, deficits as well as surpluses.