*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: Widespread water deficits forecast, including exceptional deficits in Yemen and western Oman

Widespread moderate to exceptional water deficits are forecast across much of the Middle East and Turkey through October 2016. Surpluses are forecast along the Iraq-Iran border and a small region in northeast Turkey. Exceptional water deficits are forecast on the Arabian Peninsula in April, encompassing all of Yemen and western Oman.

Canada: Widespread water deficits forecast with pockets of exceptional deficits in BC, AB, MB, ON, QB, NB, and NL

Water surpluses forecast in southern British Columbia and northern Saskatchewan through April. Widespread deficits throughout the county May through September with pockets of exceptional deficits in British Columbia, Alberta, Manitoba, Ontario, and Quebec.

Mexico, Central America & the Caribbean: Water deficits to persist in southern Mexico, and emerge later in Central America and Jamaica

Water deficits are forecast to emerge on the Baja Peninsula and will continue to emerge in southern Mexico with exceptional severity. Surpluses will re-emerge in Sonora and persist in the eastern Yucatan Peninsula, Belize, and central Cuba. Abnormal to severe deficits will emerge in much of Central America by July and in Jamaica by August.

Africa: Water deficits forecast across the northwest, coastal West Africa, and southern Africa; surpluses in East Africa

Water deficits are forecast to dominate Northwest Africa, coastal West Africa and southern Africa through October 2016. Exceptional surpluses are expected in East Africa, particularly in Uganda, Kenya and Tanzania. Surpluses are forecast to emerge in Ethiopia, Sudan, and the Sahel during the latter portion of the forecast period.

South America: Exceptional water deficits are forecast to persist across northern South America, surpluses in Argentina

Exceptional water deficits are forecast to persist across northern South America through October 2016. Portions of Venezuela may transition from deficits to exceptional surpluses, then back to deficits. Severe to exceptional surpluses are forecast for southern Brazil, Paraguay, Uruguay, and Argentina and are expected to increase in extent throughout the forecast period.

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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