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.
Viewing entries tagged
Exceptional water deficits in North Africa will diminish but persist, and severe deficits are forecast in Gabon and in Nigeria south of the Benue River. Deficits will also persist in western Zambia and are expected to be extreme on the Kafue River. Moderate to exceptional deficits will emerge in central Botswana. Exceptional surpluses will persist in Tanzania, Kenya, and northern Uganda, but diminish somewhat in northern Madagascar. Surpluses east of Kinshasa in Democratic Republic of the Congo are forecast to increase in both extent and intensity, becoming severe.
The forecast through July indicates that exceptional water deficits across northern Africa will diminish, but intense deficits will persist in Libya, Niger, Egypt, and Sudan. Deficits will downgrade in Gabon and southern DRC but remain severe. Deficits will persist in western Zambia and are expected to be extreme on the Kafue River. Relatively mild deficits are forecast for southern Africa. Intense surpluses will persist in Tanzania, Kenya, northern Uganda, and northern Madagascar.
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.
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.
Regions forecast to have significant water deficits for the 12-month period from November 2017 through October 2018 include: California, Nevada, Arizona, Louisiana, Arkansas, Mississippi, Venezuela, French Guiana, Gabon, Mongolia, and Tasmania. Areas with a forecast of significant water surplus include: Ireland, Poland, European Russia, Tanzania, and Philippines. This Watch List is based on ISciences Water Security Indicator Model (WSIM) run on 6 February 2018.
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.
Overall the extent of exceptional water deficits is expected to diminish considerably September through November leaving moderate deficits in the south and extreme to exceptional deficits across the southern Sahara. Exceptional surpluses are expected to persist in southeastern Tanzania, and while those areas of surplus will moderate slightly after November, surpluses will emerge throughout the country and may be particularly intense in Dodoma Region. Except for surpluses in East Africa, primarily moderate deficits are forecast for most of the continent from November through spring next year.
The extent of exceptional water deficits is expected to diminish considerably through October – particularly in the southern half of the continent – but deficits reaching exceptional intensity are forecast from northern Mauritania through northern Sudan, and in Somaliland, Somalia, and eastern Ethiopia. A large block of exceptional surplus is forecast in eastern Tanzania, and some exceptional surplus is also expected in northern Madagascar. Overall, deficits will continue to downgrade through January 2018, while surpluses will increase in Tanzania and will emerge in Malawi, northern Mozambique, eastern Zambia, Uganda, western Kenya, and along the While Nile in South Sudan.