*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 July 2017

ISciences Worldwide Water Watch List July 2017

Regions forecast to have significant water deficits for the 12-month period from April 2017 through March 2018 include: Brazil, Europe, northern Africa, Gabon, Somalia, Saudi Arabia, Cambodia, South Korea, Tasmania, and Mongolia. Water surpluses are forecast for: the US Gulf Coast and Idaho, La Pampa (Argentina), western European Russia, eastern Romania, southeastern Tanzania, the Volga River Basin, between the Upper Ob and the Tom Rivers (Russia), Kazakhstan, Bangladesh, and the southern Yangtze River Basin. This Watch List is based on ISciences Water Security Indicator Model (WSIM) Global Water Monitor and Forecast issued 10 July 2017.

Global Precipitation & Temperature Outlook for July 2017

Global Precipitation & Temperature Outlook for July 2017

Though there are several regions with a July forecast of significant precipitation anomalies - India's Western Ghats will be much drier than normal and northern Argentina will be much wetter - the temperature forecast has more severe and widespread anomalies. The African Sahel, Saudi Arabia, and Mongolia are among the numerous regions forecast to see much warmer than normal temperatures.

United States: Water surplus ahead for E. Texas, Louisiana, S. Mississippi

United States: Water surplus ahead for E. Texas, Louisiana, S. Mississippi

Exceptional water surplus conditions spanning the Pacific northwestern states of Washington, Oregon and Idaho are expected to moderate in the near-term. Moderate surpluses are expected to develop along the central Gulf Coast and extend up the Mississippi Basin through the forecast period, settling over the northern Great Plains states by early 2018. Severe to exceptional deficits are forecast to develop over most of Alaska and moderate but persist throughout the forecast period.

Canada: Water deficits in central QC & along QC/ON border

Canada: Water deficits in central QC & along QC/ON border

Pockets of exceptional water deficits affecting the eastern extents of Ontario and central Quebec are expected to persist in the near-term but subside by September. Recent exceptional surplus conditions in Manitoba, Saskatchewan and Alberta are expected to continue throughout the forecast period into early 2018. Conditions normalize over the remaining regions of Canada by the December through February 2018 period.

Mexico, Central America, & the Caribbean: Water deficits in much of Mexico, esp Baja

Mexico, Central America, & the Caribbean: Water deficits in much of Mexico, esp Baja

Recent severe water deficits across Mexico are expected to subside somewhat through August, shifting toward the south and bringing moderate deficit conditions to Guatemala, El Salvador, and Honduras. These conditions are forecast to persist into early 2018. Surplus conditions in southern Nicaragua and northern Costa Rica should subside and moderate by the final forecast period. Exceptional surplus conditions in central Cuba and Haiti are forecast to persist but moderate slightly by early 2018.

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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