*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

Mexico, Central America, & the Caribbean: Water surplus in Sonora & Central America

Mexico, Central America, & the Caribbean: Water surplus in Sonora & Central America

The forecast through March 2020 indicates intense water surpluses in Sonora, Mexico, and intense deficits along Mexico’s Pacific Coast in Michoacán, Guerrero, Oaxaca, and Chiapas. Deficits will persist in Veracruz State, reaching inland, and emerge in the Yucatán. Surpluses are forecast in Central America, Haiti’s western coast, and the central Bahamas.

Canada: Exceptional water deficits cover much of Quebec

Canada: Exceptional water deficits cover much of Quebec

The forecast through March 2020 for Canada’s most populated areas indicates nearly normal water conditions for Québec City, Montreal, Saskatoon, Calgary, Edmonton, and Vancouver; moderate deficits west of Ottawa and around Regina; and severe surpluses west of Toronto. Nationwide, anomalies will be similar to those observed in the prior three months including widespread, exceptional deficits in central and northern Quebec.

Australia & New Zealand: Intense water deficits will persist in Tasmania

Australia & New Zealand: Intense water deficits will persist in Tasmania

Water deficits will shrink and downgrade considerably in Australia through March 2020. Moderate deficits are expected in the southeast from Brisbane, growing more intense as they reach into southern Victoria and Tasmania. Surpluses are forecast in northwestern Western Australia. Deficits will downgrade in New Caledonia.

ISciences Worldwide Water Watch List January 2020

ISciences Worldwide Water Watch List January 2020

Regions forecast to have significant water deficits for the 12-month period from October 2019 through September 2020 include: Canada, Chile, Brazil, Finland, Ukraine, Egypt, and Australia. Areas with a forecast of significant water surplus include: United States, Tanzania, Kenya, Ireland, United Kingdom, Russia, India, and Bangladesh. This Watch List is based on ISciences Water Security Indicator Model v2 (WSIMv2) run on 7 January 2020.

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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