*Water Watch Lists
ISciences staff
ISciences Worldwide Water Watch List October ...

This month’s In Focus highlights:
- El Niño Nears Its Peak
- Ethiopia: Conflict and Crop Failure in the North
- India’s Lopsided Monsoon

*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

United States: Water deficits to lessen, surpluses in Upper Mississippi Basin

United States: Water deficits to lessen, surpluses in Upper Mississippi Basin

The forecast for the United States through November includes widespread extreme water deficits throughout the East and on the Missouri and Yellowstone Rivers, with moderate deficits in the West. A large pocket of surpluses is forecast along the Upper Mississippi River, encompassing southern Minnesota, much of Wisconsin, eastern Iowa, and northern Illinois. From December through February deficits across the US are forecast to diminish; surpluses will persist in Minnesota and Wisconsin and will continue to emerge southward.

Southeast Asia & the Pacific: Exceptional water deficits to persist in Cambodia

Southeast Asia & the Pacific: Exceptional water deficits to persist in Cambodia

Exceptional water deficits are forecast to persist in Cambodia through May. From September through November deficits will continue to emerge in Thailand and the eastern half of Luzon, Philippines. Surpluses are forecast in Laos, western Flores Island, Vietnam, Sumatra, Java, North Kalimantan, West Papua, and northern Luzon. By December, however, much of the region will begin to transition to water deficits of varying severity which will persist through May.

Africa: Exceptional water deficits in Sub-Saharan Africa to moderate

Africa: Exceptional water deficits in Sub-Saharan Africa to moderate

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.

Middle East: Water deficits continue on the Arabian Peninsula

Middle East: Water deficits continue on the Arabian Peninsula

Water deficits are forecast to become less severe from September through November in southern Turkey, the Levant, northern Saudi Arabia, and eastern Oman. However, the extent and severity of deficits will increase in southern Iraq, Iran, Qatar, and Yemen. The progression of water anomalies forecast in the Middle East indicates that widespread water deficits will persist through May, diminishing after October before becoming more severe again from March on.

South America: Water deficits persist in Chile, surpluses forecast in Paraguay

South America: Water deficits persist in Chile, surpluses forecast in Paraguay

South America is forecast to transition away from widespread exceptional water deficits in December. However, from September through November exceptional deficits are forecast across northern Brazil along with moderate deficits reaching southward to Rio de Janeiro. Severe to exceptional deficits are forecast near Caracas, Venezuela; western Bolivia; Chile; rivers in southern Argentina; and the Falkland Islands. Surpluses are forecast in eastern Paraguay, and Paraná and Santa Catarina, Brazil. Overall, water deficit conditions will continue to diminish in extent and severity from December through May.

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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