*Water Watch Lists
ISciences staff
ISciences Worldwide Water Watch List May 2024

The forecast for May 2024 expects significant water deficits for the 12-month period of February 2024 through January 2025 in South America, Africa, and Canada. Areas expected to experience surplus include central to eastern Africa, northern Australia, Europe, and Southeast Asia.

ISciences Worldwide Water Watch List May 2024
Africa
ISciences staff
Africa: Surplus expands throughout Sahel, E ...

The forecast anticipates exceptional deficits to continue in northern and northwestern African countries, as well as some central and southern countries. Intense surpluses are expected to emerge in areas throughout the Sahel.

Africa: Surplus expands throughout Sahel, E Africa
Australia & New Zealand
ISciences staff
Australia & New Zealand: Surplus persists ...

The forecast indicates that intense surplus will occur in most northern and central regions of Australia, with exceptional deficits diminishing in portions of the country near its western coast. Exceptional deficits are expected to emerge in Tasmania, as well as in pockets across New Zealand. 

Australia & New Zealand: Surplus persists in N, SE Australia
East Asia
ISciences staff
East Asia: Deficits continue in N, S, and NW ...

The forecast indicates that exceptional deficits will mostly dissipate in northeastern China, but continue in northern, southern, and northwestern portions of the country. Exceptional surplus is expected to diminish in southwestern China, though moderate to severe surpluses may continue in eastern regions of the country. 

East Asia: Deficits continue in N, S, and NW China
Southeast Asia & Pacific
ISciences staff
Southeast Asia and the Pacific: Widespread ...

The forecast indicates that exceptional deficits in Mainland Southeast Asia will persist but lessen in size, while intense surpluses will expand throughout Maritime Southeast Asia. 

Southeast Asia and the Pacific: Widespread surplus throughout Maritime Southeast Asia

East Asia: Water deficits forecast to increase in Northeast China

East Asia: Water deficits forecast to increase in Northeast China

The extent of exceptional water deficits in Mongolia, Inner Mongolia, and Xinjiang will diminish considerably though widespread deficits of varying severity are expected. Moderate to severe deficits will increase in Northeast China. Moderate surpluses are forecast for much of the Yellow River. Exceptional surpluses in eastern Qinghai will begin to moderate, and surpluses in the Yangtze River Basin will diminish and downgrade. Though exceptional deficits will shrink in Southeast China, intense deficits are forecast. Deficits will downgrade in North Korea and moderate surpluses will expand in South Korea.

Southeast Asia & the Pacific: Water deficits forecast for the Malay Peninsula

Southeast Asia & the Pacific: Water deficits forecast for the Malay Peninsula

The forecast indicates a transition away from water surplus to deficit. Moderate deficits are forecast for northern Cambodia, southern Vietnam, northern Luzon, and pockets of Sumatra and Java. More intense deficits are forecast for peninsular Thailand and Malaysia, eastern Papua New Guinea, western Timor Leste, and West Nusa Tengara. Surpluses are expected in north-central Vietnam, northern Borneo, northern Sumatra, central Philippines, North Sulawesi, East Nusa Tengara, and Pulau Sumba.

Central Asia & Russia: Severe water deficits forecast on the Amu Darya & Zaravshan Rivers

Central Asia & Russia: Severe water deficits forecast on the Amu Darya & Zaravshan Rivers

Through July, water surpluses will shrink in European Russia. The Lower Ob will transition from surplus to mild deficit, moderate to exceptional deficits will develop in the Middle Ob region, and surpluses in the Upper Ob region will downgrade. Surpluses will downgrade in the Tom River Basin, upgrade on the Ishim River, and persist on the Irtysh. Intense surpluses are forecast for northern Kazakhstan. Deficits are forecast for Turkmenistan, eastern Uzbekistan, southern Kyrgyzstan, and Tajikistan, and may be severe along the Amu Darya and Zaravshan Rivers.

Middle East: Water deficits to increase in Turkey, emerge in Gaza, West Bank, & Israel

Middle East: Water deficits to increase in Turkey, emerge in Gaza, West Bank, & Israel

Over the next few months exceptional water deficits will diminish overall in the region but persist in southern Iraq, Kuwait, northern Saudi Arabia, and Iran near the Strait of Hormuz. Deficits will spread in Turkey, and intense deficits will emerge in Gaza, Israel, West Bank, and Lebanon. After July, deficits in Turkey will moderate overall, but deficits of varying severity are forecast for many parts of the region and are expected to be especially intense in Saudi Arabia, southern Iraq, Kuwait, Qatar, United Arab Emirates, southern Iran, and West Bank.

South America: Large pockets of intense water deficit forecast for Brazil

South America: Large pockets of intense water deficit forecast for Brazil

Water deficits will diminish somewhat in South America over the next several months, but large pockets of exceptional deficit are forecast for Brazil in Acre, Rondônia, Pará, Maranhão, Tocantin, Goiás, western Minas Gerais, northern Mato Grosso do Sul, and São Paolo. Intense deficits are also forecast for: southeastern Venezuela; southernmost Ecuador; along a path from Lima, Peru through northern Chile; southern Bolivia; and Tierra del Fuego. Deficits in the Argentine Pampas will downgrade but remain severe.

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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