*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

Middle East: Water deficits will intensify in Georgia

Middle East: Water deficits will intensify in Georgia

The forecast through January 2021 indicates that widespread water anomalies will shrink considerably. However, deficits will intensify in Georgia and re-emerge in southern Riyadh Province, Saudi Arabia. Exceptional surpluses will re-emerge in central Syria and around Mosul.

South America: Water deficits will shrink overall

South America: Water deficits will shrink overall

The forecast through January 2021 indicates that water deficits will shrink considerably, but deficits are forecast from western Venezuela into Peru, and in southern Guyana, southeastern Brazil, and southern Chile. Areas of surplus include northeastern Venezuela and northern Pará, Brazil.

Mexico, Central America, & the Caribbean: Water surplus forecast for C America

Mexico, Central America, & the Caribbean: Water surplus forecast for C America

The forecast through January 2021 indicates water deficits in much of Mexico with intense anomalies in central Baja, southern Chihuahua, and from Nuevo León into Puebla. Areas of surplus include the Yucatán, Central America, Jamaica, and the Bahamas.

United States: Water deficits in the West & SW will shrink

United States: Water deficits in the West & SW will shrink

The forecast through January 2021 indicates that widespread, intense water deficits in the West, Southwest, and Northeast will shrink and downgrade considerably. Intense deficits are forecast for Colorado, Nebraska, Kansas, and Florida. Surpluses will emerge in the Northwest.

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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