*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

ISciences Worldwide Water Watch List September 2017

ISciences Worldwide Water Watch List September 2017

Regions forecast to have significant water deficits for the 12-month period from June 2017 through May 2018 include: Montana (US), Nayarit (Mexico), Amapá (Brazil), Italy, the Arabian Peninsula, Madhya Pradesh and Chhattisgarh (India), Cambodia, Mongolia, and Tasmania (Australia). Water surpluses are forecast for: US Gulf Coast, La Pampa (Argentina), Tanzania, Bangladesh, Tripura and Mizoram (India), western Myanmar, Laos, Jiangxi and Guangxi (China), and Transvolga (Russia). This Watch List is based on ISciences Water Security Indicator Model (WSIM) Global Water Monitor and Forecast issued 8 September 2017.

Global Precipitation & Temperature Outlook for September 2017

Global Precipitation & Temperature Outlook for September 2017

The September Outlook indicates much warmer than normal temperatures - conditions we'd expect to see once in 20 to 40 years - in many regions of the world including India's southern half, coastal West Africa, and the eastern Amazon Basin. Much drier than normal conditions are forecast for central India.

United States: Exceptional water deficits to retreat in Northern Plains States

United States: Exceptional water deficits to retreat in Northern Plains States

After July the Northern Plains States should see a significant retreat of exceptional water deficits. Surpluses will persist in the Gulf region, diminish in the Great Lakes States, and transition to mild deficits in Virginia and North Carolina. After October moderate water surpluses will re-emerge in most of the Great Lakes States and in the Ohio River Valley, and pockets of surplus will continue to emerge in Idaho and surrounding states. Deficits in the southern states of the East Coast are expected to ratchet up slightly to moderate intensity and emerge in Florida.

Central Asia: Water surpluses remain in the forecast for western Russia

Central Asia: Water surpluses remain in the forecast for western Russia

Water surpluses of varying intensity are forecast in Russia stretching from western European Russia to the Western Siberian Plain through April 2018 and are expected to be exceptional in large pockets of the Volga Basin and between the Upper Ob and Tom Rivers surrounding Novosibirsk from August 2017 through January 2018. In the near-term, August through October, deficit conditions in Turkmenistan and Uzbekistan are expected to ameliorate, leaving modest deficits. Exceptional surpluses will continue to emerge in northern Kyrgyzstan, including Bishkek.

Mexico, Central America, & the Caribbean: Severe water deficits forecast for Nayarit and Tabasco

Mexico, Central America, & the Caribbean: Severe water deficits forecast for Nayarit and Tabasco

Intense water deficits in Mexico and western Cuba are forecast to retreat after July. However, severe to exceptional deficits remain in the forecast for northern Baja, in Nayarit, and peppered along the Gulf of Mexico from Tamaulipas through Tabasco. Surpluses are forecast for the border of Guatemala and Honduras, and in Nicaragua, Costa Rica, Panama, and western Jamaica. After October deficits will continue to emerge in southern Mexico; surpluses in Central America are forecast to diminish to near-normal conditions.

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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