The forecast through July indicates that water deficits will increase, encompassing the West, Rockies, Southwest, Central and Southern Plains. Deficits will downgrade in Texas and Virginia through Florida. Surpluses will persist in eastern North and South Dakota.
United States: Widespread water deficits in the West & Texas
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 surplus to persist in SD, NE, KS, OK
Widespread water surpluses observed in prior months will shrink through November. However, a broad column of surplus is forecast from southern North Dakota reaching into north-central Texas with intense anomalies in South Dakota. Other areas of surplus include eastern Nevada into western Utah, Wyoming, and California from San Francisco through the southwest. A pocket of exceptional deficit is expected in the central Everglades.
United States: Widespread water surpluses to continue
The forecast through July indicates widespread water surpluses of varying intensity a vast area on either side of the Mississippi River. Exceptional anomalies are forecast around Sioux Falls, and along the Mississippi River on either side of Memphis and from Louisiana to the Gulf. Surpluses will increase in the Rockies and shrink slightly and moderate in California. In the Pacific Northwest, deficits will shrink in Washington; Oregon will transition from deficit to moderate surplus.