*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

Southeast Asia & the Pacific: Water deficits to shrink; surpluses increase

Southeast Asia & the Pacific: Water deficits to shrink; surpluses increase

The forecast through July indicates that anomalies will shrink and downgrade in Southeast Asia, leaving surpluses in northern and central Vietnam. Surpluses are also forecast for many parts of Indonesia and will be intense in southwestern Sumatra and Flores Island.

Australia & New Zealand: Water deficits to persist in North Island NZ

Australia & New Zealand: Water deficits to persist in North Island NZ

The forecast through July indicates that widespread water surpluses reaching exceptional intensity will persist in the Murray-Darling Basin and south to Melbourne. Intense deficits will persist in northern New Zealand and emerge in pockets of northern Australia.

United States: Water surpluses to shrink and downgrade

United States: Water surpluses to shrink and downgrade

The forecast through July indicates that water surpluses will shrink considerably but anomalies will persist in the Dakotas, Nebraska, Tennessee, Mississippi, Alabama, and Georgia. Deficits will increase in the West, Southwest, and Pacific Northwest, but will generally spare southern California.

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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