The forecast through July indicates that intense water deficits observed in Mexico will downgrade considerably. Severe to extreme deficits are, however, expected in Baja and along the Pacific Coast from Sinaloa through Guerrero. Severe deficits are forecast for Tabasco and moderate deficits elsewhere around the Gulf of Mexico. Moderate deficits are also expected in Guatemala, El Salvador, Haiti, and western Cuba.
The forecast through July indicates widespread water deficits throughout much of Europe, including exceptional deficits in Finland, Estonia, Latvia, Lithuania, and Belarus. Moderate to extreme deficits are forecast for remaining areas of Europe and will be especially intense in southern Germany and along many rivers including the Danube, Drava, Allier, and Dordogne. Moderate surpluses are forecast for Ireland, and intense surpluses for southeastern Spain.
The forecast through July indicates that widespread water surpluses will nearly disappear in southeastern China but will persist in the south and will include exceptional anomalies. Taiwan will transition from deficit to moderate surplus. Exceptional deficits will persist in western Inner Mongolia, and moderate to extreme deficits in Mongolia. Deficits are forecast between the Yellow and Yangtze Rivers. Severe deficits are forecast for northern Japan.
The forecast through July indicates that widespread, exceptional water deficits will shrink considerably. Severe to exceptional deficits are, however, forecast in northern Australia from the Kimberly region through Top End, Northern Territory and along the southern shore of the Gulf of Carpentaria. Deficits will also be intense in the southern tip of Western Australia, Tasmania, New Caledonia, and North Island, New Zealand.
ISciences is transitioning production of our monthly Global Water Monitor & Forecast Watch List reports to use outputs from a new version of our Water Security Indicator Model (WSIM). WSIMv2 makes use of more recent and publicly available input datasets and uses a revised methodology for calculating composite water anomalies.
Regions forecast to have significant water deficits for the 12-month period from February 2019 through January 2020 include: French Guiana, Brazil, Finland, Latvia, Egypt, Somalia, Angola, and Thailand. Areas with a forecast of significant water surplus include: United States, Paraguay, northern Iraq, western Iran, Afghanistan, Tanzania, and southeastern China. This Watch List is based on ISciences Water Security Indicator Model (WSIM) run on 10 May 2019.
The May Outlook includes a forecast of exceptional warm anomalies in a number of places including northern Alaska; the State of São Paulo, Brazil and through the Andes from Colombia through northern Chile; and, around the Gulf of Guinea in Africa. Central Tanzania is expected to be much wetter than normal. Widespread, moderate to severe wet anomalies are forecast in a broad path in the U.S. from Michigan through Louisiana.
The forecast through June indicates that water surpluses in the Ob River Basin of Russia will shrink and moderate, and intense deficits will emerge in the Tom River Basin’s southern reaches. Intense deficits will also emerge in the Yenisei River Basin. Severe deficits are forecast for western Kazakhstan, and eastern Uzbekistan’s Fergana Valley. Surpluses are expected in eastern Kyrgyzstan and southern Turkmenistan.
The forecast through June indicates that exceptional deficits will retreat from Quebec’s Ottawa-Gatineau Watershed; surpluses in Northern Ontario will transition to deficit; and deficits in the Middle Reaches of the Athabasca River Watershed in Alberta will become exceptional. Primarily moderate deficits are forecast across southern Manitoba and Saskatchewan. Intense surpluses will emerge in the Columbia River Basin in British Columbia, and deficits near Vancouver will persist but downgrade.
The forecast through June indicates that widespread water surpluses will persist in southeast China but will moderate overall. However, anomalies will be extreme to exceptional in Guangxi and into western Guangdong. Intense surpluses will persist in the Tibetan Plateau. Intense deficits are forecast for Mongolia and from western Inner Mongolia in China across central Xinjiang. Moderate deficits will emerge in North Korea, and moderate to extreme deficits are forecast for Japan.