*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 deficits forecast for southern Mexico, surpluses in Nicaragua

Mexico, Central America, & the Caribbean: Water deficits forecast for southern Mexico, surpluses in Nicaragua

Water deficits of varying severity are forecast throughout much of Mexico from November through January, with pockets of exceptional deficit in Oaxaca. Deficits will persist in Guatemala, and surpluses are forecast in eastern Honduras, Nicaragua, and northern Costa Rica. From February through April deficits in across northern Mexico will diminish, but moderate to exceptional deficits will persist in the southern states of Michoacán, Guerrero, Oaxaca, and parts of the Yucatán. Surpluses will persist in parts of Honduras and Nicaragua.

Canada: Water deficits forecast in Quebec, surpluses in southern British Columbia

Canada: Water deficits forecast in Quebec, surpluses in southern British Columbia

The forecast for Canada through January shows that exceptional deficit will persist in central Quebec but the extent of exceptional deficits will shrink in Quebec, southern Nova Scotia, and southern Newfoundland. Moderate deficits will persist in Southern Ontario. Exceptional surpluses are forecast in the southwestern corner of Northern Ontario and in the Columbia River Basin in southern British Columbia. From February through April many areas of eastern Canada will transition to normal, though large pockets of exceptional deficits will persist in Quebec and Ontario, and surpluses will continue to emerge in southern British Columbia.

Australia & New Zealand: Water surpluses forecast for Warrego River QLD & Murray River NSW

Australia & New Zealand: Water surpluses forecast for Warrego River QLD & Murray River NSW

The forecast through January shows water surpluses in the Warrego River Catchment in Queensland, between Port Pirie and Adelaide in South Australia, between the Lachlan and Murray Rivers in New South Wales, and along the southern coast of Western Australia. Mild surpluses are forecast to emerge from King Sound in Western Australia to the western shore of the Gulf of Carpentaria. Deficits are forecast south of Perth, along the Limestone Coast, southeast of Melbourne, and North Island, New Zealand.

United States: Water surpluses in Upper Midwest, Northwest, deficits in the South

United States: Water surpluses in Upper Midwest, Northwest, deficits in the South

The outlook for the United States through January indicates that water deficits will dominate the Ohio River Valley west through Arkansas and south to the Gulf, as well as the Delaware and lower Susquehanna drainages. Surpluses of varying severity are forecast for a vast block of the Northwest, Minnesota, Wisconsin, Iowa, and eastern North Carolina. From February through April the severity of both deficits and surpluses will diminish and some states in the Midwest and Northeast will transition to near-normal conditions. However, surpluses will persist in much of the Northwest and Upper Midwest.

Middle East: Water deficits to persist, though less severe

Middle East: Water deficits to persist, though less severe

The overall progression of water anomalies forecast through July indicates that widespread water deficits will persist throughout the Middle East but these deficits are expected to be less severe from November through April than in the prior three months. However, after April the forecast shows the severity level increasing, especially on the Arabian Peninsula.

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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