Though intense water deficits will persist in northern Africa over the next few months, exceptional deficits will shrink in the north and along the Red Sea, and will nearly disappear from the rest of the continent. Intense deficits will persist in Zambia’s Kafue River watershed. Areas of surplus include: Tanzania, Kenya, eastern Uganda, some countries along the northern Gulf of Guinea, central Chad, and northwestern Zambia. Surpluses will be intense in East Africa.
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The forecast through May shows widespread, intense water deficits emerging across northern Africa. Liberia and the Horn of Africa will transition from deficit to near-normal conditions. In Gabon, deficits will downgrade but remain intense, while deficits in central and southern Africa downgrade to moderate. Deficits are also forecast for: Guinea Bissau, western Burkina Faso, northern Ghana, northern Ethiopia, eastern Central African Republic, and western and southern Madagascar. Surplus is forecast for Tanzania, Uganda, Kenya, eastern South Sudan, southeastern Sudan, and southern Ethiopia.
A notable improvement is forecast for southern Africa and the Horn of Africa where conditions will transition from intense to mild water deficit. Intense deficits are, however, forecast scattered across the southern Sahara and the Sahel, and in a stretch from southern Democratic Republic of the Congo through eastern Zambia into Malawi. Deficits of varying severity remain dominant in many other regions, but surpluses are forecast for northeastern South Sudan and Tanzania, and will be exceptional in Tanzania. After April, severe deficits will emerge across northern Africa and will persist in Zambia.
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.
Exceptional water deficits are forecast to diminish considerably November through January, but will continue to emerge in coastal Mauritania, western Niger, southeastern Nigeria, and southern Cameroon. Deficits in South Africa are expected to moderate but severe deficits are forecast along the Orange River and from Lesotho through Swaziland. Notable surpluses are expected in southern Sudan, South Sudan, Tanzania, Malawi, Mozambique, and Zambia. After January, moderate to severe deficits are forecast across North Africa, mild deficits in the south, and surpluses in Tanzania.
Exceptional water deficits are expected to diminish considerably, leaving severe conditions across the north but relatively moderate conditions in the south. Some intense deficits are forecast for western Mauritania, southwestern Burkina Faso, the Chinko Nature Reserve in Central African Republic, southwestern Namibia, and Cape Town, South Africa. Surpluses are forecast for southeastern Sudan, northeastern South Sudan, the Niger Delta, Gabon, north-central Uganda, eastern Tanzania, Okavango Delta in Botswana, and the central border between Botswana and South Africa.
Though the extent of exceptional water deficits in Africa is forecast to shrink from September through November, much of the continent will remain in conditions of deficit. Surpluses are forecast to persist in Burkina Faso, Northwest Province in Cameroon, southern Sudan, eastern South Sudan, and Tanzania during this period. From December through February nearly all of Africa is forecast to experience some degree of water deficit, though less severe than in prior months. Primarily moderate deficits are forecast from the northernmost countries down through the Democratic Republic of the Congo, with only mild deficits forecast in southern Africa.
Regions likely to encounter significant water deficits in the coming months include: Ohio, Pennsylvania, the Missouri and Yellowstone Rivers, southern Mexico, Chile, Central and Eastern Europe, North Africa, Zambia, Saudi Arabia, Yemen, Siberia, Gujarat, Cambodia, South Korea, and Tasmania. Water surpluses are forecast for: Minnesota, Wisconsin, Louisiana; Paraguay; European Russia and the Volga Basin; the Chambal, Yamuna, and Ganges Rivers in India; Bangladesh; western Myanmar; Laos; and the Yellow, Yangtze, and Pearl Rivers in China. This watch list is based on ISciences' Water Security Indicator Model (WSIM) Global Water Monitor and Forecast issued 8 September 2016.
Africa: Water deficits forecast in North Africa, South Africa; surpluses in Tanzania, Uganda, South Sudan
Water deficits are forecast for North Africa and across southern Africa, though not as severe overall as in recent months. However, deficits in Zambia will be especially persistent, widespread, and severe. Surpluses are expected in northern Mozambique, Tanzania, Uganda, South Sudan, western Ethiopia, Eritrea, and parts of the Sahel.
Africa: Water deficits forecast across the Northwest, coastal West Africa, & southern Africa; surpluses in East Africa & the Sahel
Water deficits are forecast in Northwest Africa, coastal West Africa and southern Africa, with particular persistence in coastal West Africa. Exceptional surpluses are expected in East Africa, especially in Uganda, Kenya and Tanzania. Surpluses are forecast to emerge in Ethiopia, Sudan, the Sahel, and northeastern Mozambique.