The forecast through May indicates that water deficits will downgrade, with moderate anomalies throughout most of the continent, some pockets of greater intensity, and surpluses in Tanzania. Exceptional deficits are forecast in the Ethiopian Highlands. Other areas of significant deficit include Equatorial Guinea, Lesotho, Guinea-Bissau, central Republic of the Congo, eastern Angola, western Zambia and central Zambia and along the Zambezi River, and northern Zimbabwe.
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Regions forecast to have significant water deficits for the 12-month period from December 2018 through November 2019 include: French Guiana, Finland, Latvia, Angola, Namibia, United Arab Emirates, Cambodia, and Australia. Areas with a forecast of significant water surplus include: Kansas, Texas, and Tennessee (US), Syria, Tanzania, and China. This Watch List is based on ISciences Water Security Indicator Model (WSIM) run on 7 March 2019.
The forecast through April indicates that water deficits will downgrade in the southern half of the continent, becoming primarily moderate across the central breadth and mild in the south. Deficits in the north will increase and intensify, with moderate to extreme deficits in the Sahara and deficits reaching exceptional intensity in parts of the Sahel and into western Ethiopia. Intense deficits will linger in Cameroon, Equatorial Guinea, and Gabon. Surpluses will persist in western Tanzania.
The forecast through March indicates that water deficits will persist on much of the continent, but the extent of exceptional deficits will diminish considerably. Moderate to severe deficits are forecast across northern and central Africa along with pockets of exceptional deficit. Anomalies will be intense in Nigeria, Sudan, Ethiopia, Somalia, Cameroon, Equatorial Guinea, Gabon, and Lesotho. Mild to moderate deficits are forecast for southern Africa. Intense surpluses will persist in western Tanzania.
Regions forecast to have significant water deficits for the 12-month period from October 2018 through September 2019 include: Quebec (Canada), Finland, Venezuela, Somalia, South Africa, India, Thailand, Cambodia, and Australia. Areas with a forecast of significant water surplus include: Texas (US), Paraguay, Uruguay, Tanzania, and China. This Watch List is based on ISciences Water Security Indicator Model (WSIM) run on 1 February 2019.
The June Outlook indicates much warmer than normal temperatures (40+ years return period) blanketing a large block of Northeast China and stretching across the border well into Russia. Much of Europe is forecast to be warmer than normal, as well as many parts of Indonesia, while much cooler temperatures will prevail in parts of Central Africa. Conditions are expected to be much wetter than normal for several African nations along the Atlantic near the equator.
The May Outlook indicates wetter than normal conditions in East Africa, Uruguay, and Bangladesh. Much warmer than normal temperatures are expected in India, Egypt, Sudan, and Northeast China.
Most areas of exceptional water deficit will downgrade through March. Moderate deficits are expected across northern Africa, with more severe conditions in Morocco, Western Sahara, and Guinea-Bissau. Intense deficits are also forecast for southeastern Nigeria, southwestern Cameroon, Equatorial Guinea, and Gabon. Intense deficits will retreat in southern Africa. Surpluses will linger in southern Sudan, northeastern South Sudan, Tanzania, northern Mozambique, and northern Madagascar. After March deficits in northern Africa will intensify, but south of the Sahara milder conditions will prevail.
The near-term forecast indicates continued improvement in water conditions in southern Africa as exceptional deficits nearly disappear. Intense deficits are, however, expected in Lesotho. Deficits are forecast across northern Africa including pockets of exceptional deficit in western Mauritania through Guinea-Bissau, scattered around the Gulf of Guinea, small pockets across the southern Sahara, and in southeastern Ethiopia. Surpluses are expected in southern Sudan, South Sudan, western Ethiopia, Kenya, Tanzania, western DRC, and western CAR into Cameroon. After February intense deficits will emerge in the north.
South Africa stands out in the November Outlook with a forecast of exceptionally hotter than normal temperatures. Much of Asia, Indonesia, and the southern and eastern US are expected to be warmer than normal. Much drier than normal conditions are expected in a path following the Andes from Colombia through Brazil, while wetter than normal conditions are forecast for the US Northern Plains states and pockets of central Africa.