*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: Large pockets of intense water deficit forecast for Brazil

South America: Large pockets of intense water deficit forecast for Brazil

Water deficits will diminish somewhat in South America over the next several months, but large pockets of exceptional deficit are forecast for Brazil in Acre, Rondônia, Pará, Maranhão, Tocantin, Goiás, western Minas Gerais, northern Mato Grosso do Sul, and São Paolo. Intense deficits are also forecast for: southeastern Venezuela; southernmost Ecuador; along a path from Lima, Peru through northern Chile; southern Bolivia; and Tierra del Fuego. Deficits in the Argentine Pampas will downgrade but remain severe.

Europe: Water surpluses will retreat in Central Europe & the Balkans as deficits emerge

Europe: Water surpluses will retreat in Central Europe & the Balkans as deficits emerge

Water surpluses will retreat in Central Europe and the Balkans as deficits emerge. Deficits are also forecast for Northern Europe with exceptional deficits in Finland, Estonia, and Latvia. Intense surpluses are forecast for Hungary and for eastern Ukraine into Russia, with both deficits and surpluses in European Russia. Surpluses will persist on the Iberian Peninsula but retreat in France, with deficits emerging in Auvergne. Moderate surpluses will persist in Ireland, England, and Normandy.

Mexico, Central America, & the Caribbean: Deficits in Baja to downgrade but remain severe

Mexico, Central America, & the Caribbean: Deficits in Baja to downgrade but remain severe

In the next few months water deficits in Baja will downgrade somewhat. Moderate deficits are forecast for Chihuahua, Coahuila, Tamaulipas, central Mexico, and along the Gulf from Veracruz into Yucatan. Surpluses in Central America will shrink considerably. Intense surpluses are forecast for Jamaica; deficits are forecast for Haiti and Dominican Republic. After July, intense deficits will emerge in southern Mexico and northern Central America.

Australia & New Zealand: Water deficits to downgrade but persist in Tasmania

Australia & New Zealand: Water deficits to downgrade but persist in Tasmania

Exceptional water deficits that have dominated southern Australia are expected to disappear, but deficits are forecast for northern Australia, the southwest, the southeast, and Tasmania. These deficits may be intense in Tasmania and in pockets of other aforementioned areas. Moderate deficits are expected along the Darling, Lachlan, and Macquarie Rivers in New South Wales. Surpluses will shrink but persist in the Mackenzie River region of Queensland and in southwest Kimberley region of Western Australia.

United States: Intense water surpluses to persist in Idaho and Montana

United States: Intense water surpluses to persist in Idaho and Montana

Intense water surpluses in the Ohio River Valley and the Lower Mississippi Basin will retreat considerably. Surpluses in western Montana and northern Idaho will remain intense. Exceptional deficits will persist in Utah and increase in southwest Colorado, but deficits in surrounding states will moderate. On the East Coast deficits will retreat, except in South Carolina and Georgia. Southern Florida will transition from deficit to surplus. Moderate deficits are forecast for Nebraska, eastern North Dakota, Minnesota, and northern Wisconsin.

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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