*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: Intense water deficits to emerge in Rio Grande do Norte, Paraiba, Pernambuco

South America: Intense water deficits to emerge in Rio Grande do Norte, Paraiba, Pernambuco

Exceptional water deficits are forecast to diminish considerably over the next three months except in the western Amazon Basin in Brazil and Acre, Rondônia, Mato Grosso, and Tocantins. Deficits are also expected across Brazil’s Northeast region. Elsewhere on the continent, intense deficits are expected in western Bolivia and the Gulf of Corcovado, Chile. Areas of surpluses include central Colombia; Mato Grosso do Sul, Brazil; and La Pampa Province, Argentina. After February widespread surpluses will emerge in the northern Amazon Basin and Venezuela, Guyana, and Suriname.

Southeast Asia & the Pacific: Intense water surpluses to persist in Vietnam

Southeast Asia & the Pacific: Intense water surpluses to persist in Vietnam

The forecast over the next six month indicates a gradual transition from predominantly surplus conditions to deficit, though western Cambodia and Papua New Guinea stand in contrast with current deficit conditions persisting throughout the period. In the near-term through February surpluses will diminish in Malaysia, Indonesia, Philippines, and Papua, but will persist in Myanmar, Laos, and Vietnam. After February deficits will emerge throughout Malaysia and Indonesia, diminish in western Cambodia, and moderate in Papua New Guinea.

East Asia: Intense water deficits to emerge in Shandong, China

East Asia: Intense water deficits to emerge in Shandong, China

The near-term forecast shows a vast stretch of exceptional water deficits from southern Mongolia into Xinjiang and Inner Mongolia, China. Intense deficits are expected to emerge in Shandong, China, and will continue to emerge in South Korea. Less severe deficits are forecast for southeastern China and western Taiwan. Surpluses in the Han (Hanjiang) and Huai River watersheds will remain widespread and exceptional. Surpluses are also forecast for Shanghai, the eastern stretch of the Ordos Loop of the Yellow (Huang) River, northern Sichuan, Qinghai, central Tibet, and Hainan. 

Australia & New Zealand: Water deficits to persist in Tasmania, surpluses near Bundaberg

Australia & New Zealand: Water deficits to persist in Tasmania, surpluses near Bundaberg

Exceptional deficits observed in recent months in Australia are forecast to nearly disappear, though intense deficits will persist in Tasmania through February and the southwestern tip of Western Australia through May. The near-term forecast includes deficits along Australia’s southeastern coast and in eastern New South Wales, and exceptional surpluses near Bundaberg, Queensland. After February surpluses near Bundaberg will recede and deficits will continue to emerge in the southwestern tip of WA, from the Fleurieu Peninsula in South Australia through Victoria, in Tasmania, and in New Zealand. 

United States: Intense water deficits forecast for Lower Mississippi Valley

United States: Intense water deficits forecast for Lower Mississippi Valley

The near-term forecast indicates exceptional deficits in the Lower Mississippi Valley and deficits nearly as intense through the South Atlantic States. Widespread moderate deficits are forecast from southern California through eastern Texas, with severe deficits near Houston. Moderate surpluses are forecast in the Great Lakes, and intense surpluses are forecast for eastern Nebraska, central Minnesota, and southeastern Idaho. After February deficits in the Lower Mississippi Valley and the South Atlantic State will moderate, deficits will spread in California, and widespread surpluses will emerge in the Northwest and along the Columbia, Missouri, and Yellowstone Rivers.

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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