*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: Widespread water deficits in Brazil to persist but moderate

South America: Widespread water deficits in Brazil to persist but moderate

The near-term forecast indicates that widespread water deficits will persist, though moderate, in Brazil. However, intense deficits are forecast for: Brazil’s far north into Suriname and French Guiana; Ceará and Rio Grande do Norte; north-central and southern Venezuela; Cochabamba, Bolivia; northern Chile; and Tierra del Fuego. Surpluses will persist in La Pampa and Buenos Aires Provinces, Argentina, and will emerge in Uruguay. After November deficits will retreat to eastern Brazil and surpluses will emerge in the northern Amazon Basin.

Africa: Exceptional water deficits to diminish considerably

Africa: Exceptional water deficits to diminish considerably

Overall the extent of exceptional water deficits is expected to diminish considerably September through November leaving moderate deficits in the south and extreme to exceptional deficits across the southern Sahara. Exceptional surpluses are expected to persist in southeastern Tanzania, and while those areas of surplus will moderate slightly after November, surpluses will emerge throughout the country and may be particularly intense in Dodoma Region. Except for surpluses in East Africa, primarily moderate deficits are forecast for most of the continent from November through spring next year.

Europe: Moderate to severe water deficits ahead for Bosnia and Herzegovina, Romania

Europe: Moderate to severe water deficits ahead for Bosnia and Herzegovina, Romania

Exceptional water deficits are expected to diminish considerably in the coming months – persisting only in Finland – leaving moderate deficits throughout much of Europe with slightly more intense deficits in parts of the Balkans. Intense surpluses will persist in western Russia, and surpluses are also forecast for northern Sweden, central Germany, Scotland, and Northern Ireland. After November most areas of deficit will return to near-normal conditions. Intense surpluses will persist in western Russia, along with surpluses of lesser severity primarily in Northern Europe.

Mexico, Central America & the Caribbean: Water deficits ahead for much of Mexico

Mexico, Central America & the Caribbean: Water deficits ahead for much of Mexico

Water deficits are forecast to continue in much of Mexico, increasing in extent and severity through February 2018. For the next few months exceptional deficits are forecast in Nayarit, along with deficits of varying severity in other states including Hidalgo, Michoacán, Sinaloa, and Tamaulipas. Surpluses in Central America are expected diminish but will remain in the forecast through November in Honduras, Nicaragua, Costa Rica, and Panama.

United States: Exceptional water surpluses in SE Texas & the Gulf

United States: Exceptional water surpluses in SE Texas & the Gulf

Exceptional water surpluses are forecast in southeastern Texas through November along with surpluses of lesser severity along the Gulf. Exceptional deficits in the Northern Plains States will moderate. In the West, surpluses are forecast in Idaho, nearby areas of surrounding states, and pockets of central California. Deficits are expected in: northern Colorado, Kansas, Iowa, northeastern and southernmost Texas, southern Michigan, northwestern Pennsylvania, northern Maine, southern West Virginia, and the Southeast. After November moderate surpluses are forecast for the Ohio River Valley. 

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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