*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: Intense water deficits will persist in Iraq, increase in Iran

Middle East: Intense water deficits will persist in Iraq, increase in Iran

The forecast through September indicates that water deficits will downgrade in the Levant but remain intense in West Bank and Lebanon, and deficits will intensify on the Arabian Peninsula. In Turkey, deficits will downgrade and shrink somewhat but much of Turkey will continue in moderate to severe deficit with some pockets of greater intensity. Exceptional deficits will persist in southern Iraq, and severe deficits west of the Euphrates River. In Iran, deficits will increase and become more intense.

Mexico, Central America, & the Caribbean: Significant water deficits forecast for southern Mexico

Mexico, Central America, & the Caribbean: Significant water deficits forecast for southern Mexico

Over the next few months, significant water deficits will emerge in southern Mexico including Michoacán, Guerrero, Puebla, Veracruz, Oaxaca, Tabasco, and Chiapas. Exceptional deficits will also reach into Central America, emerging in Guatemala, El Salvador, and western Honduras. Deficits will downgrade somewhat in western Cuba but intensify in Haiti and the Dominican Republic, and Jamaica will transition from surplus to deficit.

Africa: Water deficits to intensify in W Ethiopia, Zambia, & Botswana

Africa: Water deficits to intensify in W Ethiopia, Zambia, & Botswana

Exceptional water deficits will shrink and downgrade across North Africa and along the Red Sea but deficits will remain widespread and intense. Intense deficits are also forecast for western Ethiopia, southern Gabon, northwestern Botswana, central Zambia, and western Madagascar. Exceptional surpluses will persist in East Africa; extreme surpluses are forecast for the conjoined borders of Cameroon, Central African Republic, and Republic of the Congo; and surpluses of lesser intensity are forecast for westernmost Democratic Republic of the Congo.

ISciences Worldwide Water Watch List July 2018

ISciences Worldwide Water Watch List July 2018

Regions forecast to have significant water deficits for the 12-month period from April 2018 through March 2019 include: southern Mexico, northern Brazil, North Africa, Europe, and Afghanistan. Areas with a forecast of significant water surplus include: Montana and Idaho (US), Tanzania, Kenya, Uganda and Bangladesh. This Watch List is based on ISciences Water Security Indicator Model (WSIM) run on 10 July 2018.

Global Precipitation & Temperature Outlook July 2018

Global Precipitation & Temperature Outlook July 2018

The July Outlook indicates exceptionally drier than normal conditions for most of southern Mexico into Central America. Much warmer than normal temperatures are forecast for Ireland and western United Kingdom, as well as many other parts of the world.

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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