ISCIENCES WORLDWIDE WATER WATCH LIST NOVEMBER 2019

14 November 2019

This map presents a selection of regions likely to encounter significant water anomalies during the one year period beginning in August 2019 and running through July 2020 using 3 months of observed temperature and precipitation data and 9 months of forecast data.

The synopsis that follows provides highlights of regional water forecasts. Regional details are available in ISciences Global Water Monitor & Forecast Watch List November 14, 2019 (pdf).

United States: Through January 2020 widespread surpluses will persist in the Plains States as far south as Oklahoma and in the Upper Midwest with intense anomalies in the Dakotas. Deficits will downgrade in the Southwest, persist with intensity in southwestern Colorado, and diminish considerably from the Virginias through the Southeast. Intense deficits are forecast for Delaware and southern Florida.

Canada: Through January 2020 nearly normal conditions are forecast for most major metropolitan areas with moderate surpluses around Montreal and deficits near Regina, Saskatchewan. Exceptional deficits will persist in a vast portion of central and northern Quebec and large blocks in northern Manitoba and Alberta. Surpluses are expected in the southern Columbia Mountains of British Columbia.

Mexico, Central America, and the Caribbean: Through January 2020 deficits around Mexico’s Gulf Coast will shrink considerably but severe anomalies will persist in northern Veracruz State and nearby. Surpluses are forecast in Nuevo León State in the northeast, Mexico’s central Pacific Coast, the Federal District, small pockets in the south, and throughout much of Central America.

South America: Through January 2020 deficits will shrink and downgrade overall, persisting primarily in Brazil and Chile. In Brazil, intense deficits are forecast in Amapá, Pará, Maranhão, Bahia and its smaller east coast neighbors, Paraná, and São Paulo State. Areas of surplus include Colombia, southern Venezuela, Ecuador, northern Peru, Uruguay, and Rio Grande do Sul, Brazil.

Europe: Through January 2020 deficits will shrink and downgrade overall, though widespread and exceptional anomalies will persist in Finland. Deficits are expected in the Baltics, Eastern Europe, the Balkans, and Italy. Areas of surplus include Ireland, the U.K., France, northwestern Spain, Switzerland, Denmark, and northern European Russia. Surpluses will be intense in Wales, England, and Russia.

Africa: Through January 2020 deficits will shrink and downgrade considerably, though intense deficits are expected in coastal Mauritania, eastern South Africa, and Lesotho. Surpluses will increase in East Africa and in nations along the northern shore of the Gulf of Guinea, with exceptional anomalies in central Nigeria and extreme and widespread surpluses in Tanzania.

Middle East: Through January 2020 moderate to exceptional surpluses will persist from northern Iraq through a vast expanse of western Iran reaching past the Iran-Turkmen border. Exceptional surpluses will re-emerge in northern Syria and moderate surpluses in western Iraq. Deficits will shrink and downgrade considerably, persisting in Georgia and in Riyadh Region, Saudi Arabia.

Central Asia and Russia: Through January 2020 exceptional surpluses are forecast in the Northern European Plain in Russia, the Ob River region, and the Upper Reaches of the Volga Watershed. Intense deficits will persist north and southeast of Lake Baikal. Surpluses are forecast for northern Kazakhstan, Kyrgyzstan, western Tajikistan, eastern Uzbekistan, and along Turkmenistan’s southern border.

South Asia: Through January 2020 surpluses are forecast for much of the region including exceptional anomalies in India from Mumbai into Kerala, the Narmada River Basin, and central Rajasthan. Surpluses will remain intense throughout Bangladesh and will increase in Afghanistan, with exceptional anomalies forecast in the Upper Helmand River Watershed and around Mazar-e Sharif.

Southeast Asia and the Pacific: Through January 2020 surpluses will persist in Laos, Vietnam, eastern Cambodia, and Myanmar. Intense deficits will persist in northwestern Cambodia and deficits of lesser intensity are forecast for much of Thailand. Deficits are also forecast for southern Sumatra, Java, southern Borneo, and Papua New Guinea. Anomalies will be especially widespread and intense in Java.

East Asia: Through January 2020 deficits are forecast for Mongolia, North Korea, and the following regions of China: eastern Xinjiang, southern Yunnan, Taiwan, Fujian, the Shandong Peninsula, southern Henan, Anhui, and Jiangsu. Anomalies will be exceptional in Xinjiang, Mongolia, Yunnan, and Taiwan. Surpluses are forecast in Northeast China and a wide path from Tibet through the Yellow River Basin.

Australia & New Zealand: Through January 2020 deficits will shrink and downgrade considerably. Severe to extreme deficits are, however, forecast for Tasmania and eastern Australia from Melbourne north through Canberra, moderating near Gold Coast in Queensland and continuing past Brisbane. Deficits in New Caledonia will downgrade from exceptional but will be severe to extreme.

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