*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 Asia: Intense deficits forecast for central India, surpluses Bangladesh

South Asia: Intense deficits forecast for central India, surpluses Bangladesh

A relatively consistent pattern of water anomalies is forecast from September through May characterized by exceptional deficits in central India and surpluses in Bangladesh, Nepal, and far eastern India. In the near-term, intense deficits are forecast in Madhya Pradesh and Chhattisgarh trailing west, east, and south. Deficits are also forecast in Karnataka, Goa, coastal Maharashtra, and southwestern Afghanistan and Pakistan. Exceptional surpluses will continue to emerge in Bangladesh, Tripura, and Mizoram. Some severe surpluses are forecast to emerge near Bengaluru, Karnataka. After November, severe to extreme deficits are forecast to emerge in Arunachal Pradesh.

Southeast Asia & the Pacific: Gradual transition from water surplus to deficit

Southeast Asia & the Pacific: Gradual transition from water surplus to deficit

The forecast indicates a transition away from widespread water surpluses and towards the gradual emergence of deficits. Exceptional deficits in western Cambodia are expected to persist through February or longer, but should diminish in extent after November. From September through November moderate deficits will begin to emerge in Thailand, the Malay Peninsula, southern Sumatra, and Java, and thereafter in Borneo and Sulawesi.

East Asia: Water surpluses in South China to diminish; deficits ahead for Hokkaido

East Asia: Water surpluses in South China to diminish; deficits ahead for Hokkaido

Recent exceptional deficits in Mongolia, the Korean Peninsula, and Liaoning are expected to moderate in the near term – September through November. Widespread surpluses are expected to persist in southern China from Poyang Lake in Jiangxi southwest through Hunan into Guangxi and Yunnan, and the western Pearl River Delta, though the extent of exceptional surpluses will diminish considerably. The coastal southeast will transition from surplus to moderate deficit, a trend which is forecast to continue through May. After November, surpluses in Jiangxi through Yunnan will continue to diminish.

Australia: Intense water deficits to persist in Busselton, WA & Tasmania

Australia: Intense water deficits to persist in Busselton, WA & Tasmania

Exceptional water deficits observed in recent months over much of Australia are forecast to diminish considerably in the near-term and through May 2018. However, severe to exceptional deficits are forecast to persist through February in Tasmania and the southernmost tip of Western Australia. From September through November moderate to severe deficits are forecast in the southeast, exceptional deficits will persist in Northern Territory’s Top End, and surpluses will continue to emerge along Queensland’s northeast coast.

Canada: Water deficits in the Prairie Provinces to retreat

Canada: Water deficits in the Prairie Provinces to retreat

The near-term forecast through November indicates a significant retreat of exceptional water deficits in the Prairie Provinces. Deficits will persist in northeastern Manitoba and are forecast for much of Alberta, where they may be more intense north of Banff National Park in the southwest and may persist through February 2018 or longer. Surpluses in Southern Ontario north of Kitchener and in Ottawa are expected to diminish, and deficits are forecast for much of Northern Ontario. Deficits will persist in New Brunswick, and emerge in Quebec east of the St. Lawrence River. 

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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