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.
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Regions forecast to have significant water deficits for the 12-month period from September 2018 through August 2019 include: Quebec (Canada), Chile, Finland, Albania, northern Africa, India, western Cambodia, and southeastern Australia. Areas with a forecast of significant water surplus include: Texas and Pennsylvania (US), Paraguay, western Tanzania, Tomsk and Kemerovo (Russia), and Heilongjiang (China). This Watch List is based on ISciences Water Security Indicator Model (WSIM) run on 7 December 2018.
The September Outlook indicates that intense heat anomalies which have dominated Central Europe for the past month are expected to moderate overall. Exceptionally warmer than normal temperatures will prevail in Madagascar. Much drier than normal conditions are forecast in India along its southern Arabian Sea coast and also in Ethiopia's central Highlands.
The August Outlook indicates much warmer than normal temperatures in much of Europe reaching exceptional intensity in parts of Central Europe and southern Scandinavia. Precipitation is expected to be above average in Greece, Italy, and across the Mediterranean into Algeria.
The forecast through August indicates deficits in the Northeast, which could be exceptional in southern Maine. Moderate to severe surpluses are forecast scattered from Virginia through Alabama, and covering nearly all of Florida. Primarily moderate deficits are forecast for the Mississippi River Basin. Intense deficits are forecast for western Colorado, northern Utah, western Oregon, western Washington, and southernmost Texas. Primarily moderate deficits are expected in California. Surpluses will diminish in Idaho and downgrade slightly from exceptional in Montana.
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.
The forecast through June indicates that deficits will diminish and downgrade in the South Atlantic States, retreat considerably in the Gulf States, downgrade to moderate in the Southern Plains States, persist with intensity in the Southwest, and shrink in central California. Surpluses are forecast for Idaho, Montana, western Wyoming, Nebraska, South Dakota, Iowa, Missouri, and along the Missouri and Yellowstone Rivers. Surpluses will be exceptional in Idaho and Montana. Surpluses in the Ohio River Valley will diminish. After June, anomalies will downgrade, but persist.
The near-term forecast indicates exceptional deficits in the Lower Mississippi Valley and deficits nearly as intense through the South Atlantic States. Widespread moderate deficits are forecast from southern California through eastern Texas, with severe deficits near Houston. Moderate surpluses are forecast in the Great Lakes, and intense surpluses are forecast for eastern Nebraska, central Minnesota, and southeastern Idaho. After February deficits in the Lower Mississippi Valley and the South Atlantic State will moderate, deficits will spread in California, and widespread surpluses will emerge in the Northwest and along the Columbia, Missouri, and Yellowstone Rivers.
Widespread water deficits are forecast in much of the eastern half of the US through December and may be exceptional in the Virginias and Pennsylvania. Moderate to exceptional surpluses are predicted in central Minnesota. Surpluses will continue to emerge in northwestern Wisconsin, the western Upper Peninsula of Michigan, Florida, and Idaho and its neighbors. After December deficits in the East are expected to diminish, but intense deficits will persist in the Carolinas and southern Louisiana. Intense surpluses will continue to emerge in much of Minnesota.
Exceptional water surpluses are forecast in southeastern Texas through November along with surpluses of lesser severity along the Gulf. Exceptional deficits in the Northern Plains States will moderate. In the West, surpluses are forecast in Idaho, nearby areas of surrounding states, and pockets of central California. Deficits are expected in: northern Colorado, Kansas, Iowa, northeastern and southernmost Texas, southern Michigan, northwestern Pennsylvania, northern Maine, southern West Virginia, and the Southeast. After November moderate surpluses are forecast for the Ohio River Valley.