*Water Watch Lists
ISciences staff
ISciences Worldwide Water Watch List June 2025

The forecast through February 2026 expects deficits in Central and Eastern Europe, Central Asia, and the Levant. Surpluses are expected in the western Amazon, the Sahel and southern Africa, and northeastern Australia.

ISciences Worldwide Water Watch List June 2025
Australia & New Zealand
ISciences staff
Australia & New Zealand: Surpluses spread ...

Severe to exceptional surpluses will remain throughout Queensland. Exceptional deficits will occur in portions of Victoria, Western Australia, Tasmania, and New Zealand. 

Australia & New Zealand: Surpluses spread throughout Queensland
East Asia
ISciences staff
East Asia: Deficits continue in NW China, ...

Exceptional deficits will occur in northwestern and southeastern China, widespread throughout the Yangtze River Basin. Isolated pockets of surplus will affect portions of central and northeastern China. 

East Asia: Deficits continue in NW China, Yangtze River Basin
Southeast Asia & Pacific
ISciences staff
Southeast Asia and the Pacific: Deficits ...

Exceptional surpluses throughout Maritime Southeast Asia will mostly diminish, though pockets of severe to exceptional deficits will persist in portions of the Philippines, Indonesia, Papua, West Papua, and New Guinea. 

Southeast Asia and the Pacific: Deficits persist in Maritime SE Asia
South Asia
ISciences staff
South Asia: Deficits remain in Afghanistan, ...

Exceptional surpluses in India will mostly dissipate, transitioning to moderate to severe surpluses. Exceptional deficits will remain in Afghanistan and Pakistan. 

South Asia: Deficits remain in Afghanistan, Pakistan, surpluses persist in India

South America: Widespread, intense water deficits in much of Brazil

South America: Widespread, intense water deficits in much of Brazil

Though a slight reduction in the extent of exceptional deficits is expected, the forecast for the next three months indicates a basic pattern of water conditions similar to observed conditions in the prior three months which includes widespread, intense deficits in most of Brazil north of Rio de Janeiro and surpluses in La Pampa Province, Argentina. In addition, a transition from surplus to deficit is forecast in Brazilian states south of Rio and in eastern Paraguay. After October deficits across northern South America are forecast to shrink considerably.

Africa: Water deficits persist in Somaliland and Somalia; surpluses in Tanzania

Africa: Water deficits persist in Somaliland and Somalia; surpluses in Tanzania

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. 

Europe: Water deficits forecast to persist in many parts of Europe

Europe: Water deficits forecast to persist in many parts of Europe

The extent of exceptional water deficits is expected to diminish considerably in the coming months though southern Europe will remain in moderate deficit through April 2018. Some relief is in the near-term forecast, particularly for Italy, Spain, Portugal, and Belgium, as exceptional deficits shrink through October, though Finland will remain in the grip of intense deficits. Surpluses are forecast for western Russia, the border of Romania and Moldova, and a pocket in north-central Germany. 

ISciences Worldwide Water Watch List August 2017

ISciences Worldwide Water Watch List August 2017

Regions forecast to have significant water deficits for the 12-month period from May 2017 through April 2018 include: Brazil, Belgium, Spain, Italy, Finland, northern Africa, Gabon, Somalia, Saudi Arabia, Turkmenistan, Cambodia, Mongolia, and Tasmania. Water surpluses are forecast for: La Pampa (Argentina), Tanzania, western Russia, Bangladesh, Manipur and Mizoram (India), and eastern Thailand. This Watch List is based on ISciences Water Security Indicator Model (WSIM) Global Water Monitor and Forecast issued 9 August 2017.

Global Precipitation & Temperature Outlook for August 2017

Global Precipitation & Temperature Outlook for August 2017

The August forecast indicates a few areas that will see drier than normal conditions, including northern India from Gujarat through the center of the country; and, along the southern and eastern shores of the Black Sea. But once again it is the temperature forecast that commands attention with vast areas of northern South America and the Middle East forecast to be exceptionally hotter than normal, as well as many other parts of the world with a forecast of warm anomalies of varying severity.

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.

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