*Special Topics
ISciences staff
Mexican Drought in Historical Context: A sign ...

The ISciences Global Water Monitor and Forecast Watch List provides monthly reports of data collected by our Water Security Indicator Model (WSIM), which monitors and forecasts water anomalies on a global basis.

Mexican Drought in Historical Context: A sign of more extreme heat-driven drought to come
*Water Watch Lists
ISciences staff
ISciences Worldwide Water Watch List April 2024

The forecast for April 2024 expects significant water deficits for the 12-month period of January 2024 through December 2024 in South America, northeastern Africa, and the Middle East. Areas expected to experience surplus include eastern to eastern Africa, northern Australia, Europe, and Southeast Asia.

ISciences Worldwide Water Watch List April 2024
East Asia
ISciences staff
East Asia: Exceptional deficits continue in N, ...

The forecast indicates that exceptional deficits will persist in northwestern regions of China, but lessen in size in northern and northeastern China. Surpluses occurring in Tibet are also expected to remain but diminish in size. 

East Asia: Exceptional deficits continue in N, NW China
Southeast Asia & Pacific
ISciences staff
Southeast Asia and the Pacific: Surplus spreads ...

The forecast indicates that deficits will persist throughout Mainland Southeast Asia, but decrease in intensity, becoming mostly moderate to severe anomalies. Intense surplus is expected to expand throughout Maritime Southeast Asia, particularly in central Indonesia, Papua, and Papua New Guinea. 

Southeast Asia and the Pacific: Surplus spreads throughout Maritime SE Asia
South Asia
ISciences staff
South Asia: Surplus expands throughout India

The forecast indicates that most exceptional deficits in Pakistan and Afghanistan will dissipate, though some regions are expected to experience lingering deficits. India is expected to observe widespread surplus throughout the country. 

South Asia: Surplus expands throughout India

Canada: Extreme water surpluses to persist near Ottawa

Canada: Extreme water surpluses to persist near Ottawa

While the forecast for Canada will remain a patchwork of water anomalies, the most noticeable difference in the near-term is the widespread emergence of surplus conditions in Quebec and the slight downgrade of deficits west of Hudson Bay. Surpluses may be extreme near Ottawa. Significant deficits are forecast through January or longer in Jamésie, Quebec; the northern border between Quebec and Ontario; the southeast and southwest shores of Hudson Bay; and northwestern Ontario into central Manitoba. After January near-normal water conditions are forecast for large portions of eastern Canada.

Africa: Water deficits in South Africa to moderate; surpluses forecast in Tanzania

Africa: Water deficits in South Africa to moderate; surpluses forecast in Tanzania

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.

Australia & New Zealand: Intense deficits to persist along the southeast coast & Tasmania

Australia & New Zealand: Intense deficits to persist along the southeast coast & Tasmania

Recent exceptional water deficits in Australia are forecast to diminish considerably overall, but persist in Tasmania and the southwestern tip of Western Australia. In the near-term, deficits are expected in much of South Australia, eastern New South Wales, and along Australia’s southeastern coast where deficits may be intense. Exceptional surpluses are forecast near Bundaberg, Queensland. After January, intense deficits will emerge in southwest Queensland and into New South Wales and South Australia. Primarily moderate deficits are forecast elsewhere in Queensland and in southeastern Australia.

South America: Water deficits forecast to diminish considerably but persist in Brazil

South America: Water deficits forecast to diminish considerably but persist in Brazil

A significant retreat of exceptional deficits is forecast November through January, though deficits are forecast for much of Brazil’s northern half and along its southeast coast from São Paulo to Rio de Janeiro. Intense surpluses are forecast for central Colombia and Venezuela’s northeastern coast into Trinidad and Tobago. Moderate surpluses are forecast for northern Peru, northern Bolivia, southern Paraguay, and Buenos Aires Province, Argentina. After February, a transition from deficit to moderate surplus is forecast for northern Amazonian Brazil.

ISciences Worldwide Water Watch List November 2017

ISciences Worldwide Water Watch List November 2017

Regions forecast to have significant water deficits for the 12-month period from August 2017 through July 2018 include: Amapá, Amazonas, and Maranhão (Brazil); Madhya Pradesh and Haryana (India); Cambodia; Fujian and Inner Mongolia (China); Mongolia; Papua New Guinea; and, South Australia and Tasmania (Australia). Areas with a forecast of significant water surpluses include: Bangladesh; Tripura, Mizoram, and Manipur (India), western Myanmar; the Yangtze River (China); Poland; and European Russia. This Watch List is based on ISciences Water Security Indicator Model (WSIM) issued 8 November 2017.

Many analyses reported in ISciences-authored blog posts are based on data generated by the ISciences Water Security Indicator Model (WSIM). Other sources, if used, are referenced in footnotes accompanying individual posts. WSIM is a validated capability that produces monthly reports on current and forecast global freshwater surpluses and deficits with lead times of 1-9 months at 0.25°x0.25° resolution. This capability has been in continuous operation since April 2011 and has proven to provide reliable forecasts of emerging water security concerns in that time-frame. WSIM has the ability to assess the impacts of water anomalies on people, agriculture, and electricity generation. Detailed data, customized visualizations, and reports are available for purchase.

For more information contact info@isciences.com.

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