Exceptional deficits throughout Africa will persist in northwestern, northern, and central countries. Surpluses will remain along the Sahel.
Exceptional deficits will remain throughout the Amazon and the Boliviarian Nations. Similar deficits will occur in northeastern coastal regions of Brazil, in Argentina, and in Chile.
The forecast for November 2024 expects significant water deficits for the 12-month period of August 2024 through July 2025 in northern South America, Canada, northwestern and eastern China, and northern to central Africa. Areas expected to experience surplus include central Africa, South Asia, and Central America.
With the release of WSIM v3 and 8 years of additional data, we reevaluate drought risk in the Amazon and the historic drought that continue to affect the region.
The forecast indicates that extreme to exceptional surpluses in northern Australia will diminish, though will still remain present in some regions of Northern Territory. Exceptional deficits across the continent will similarly dissipate, though severe deficits are expected along the southern coast of Victoria.
Regions forecast to have significant water deficits for the 12-month period of May 2020 through April 2021 include: Venezuela, French Guiana, Estonia, Latvia, and Quebec (Canada). Areas with a forecast of significant water surplus include: China, Bangladesh, Pakistan, European Russia, and British Columbia (Canada). This Watch List is based on ISciences Water Security Indicator Model v2 (WSIMv2) run on 4 August 2020.
Regions forecast to have significant water deficits for the 12-month period of April 2020 through March 2021 include: Venezuela, French Guiana, Finland, Estonia, Latvia, Equatorial Guinea, and Gabon. Areas with a forecast of significant water surplus include: Kenya, Tanzania, Pakistan, Afghanistan, northern European Russia, and British Columbia, Canada. This Watch List is based on ISciences Water Security Indicator Model v2 (WSIMv2) run on 6 July 2020.
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.
Severe to exceptional water deficits will continue to emerge in the South and South Atlantic states through September, with moderate deficits in the Northeast and in the Ohio River Valley, though deficits are expected to diminish somewhat in severity after June. Moderate deficits may emerge on the Arkansas and Colorado Rivers and moderate to severe deficits in northern Colorado from June through September. Exceptional surpluses are forecast to persist in Idaho through June, along with surpluses of varying intensity in the Pacific Northwest and California. After June the extent and severity of these surpluses is forecast to diminish.
Overall much of Mexico will experience drier than normal conditions. However, exceptional deficits in Baja and across the Gulf of California observed for the past three months are forecast to diminish in the months ahead. From August through October deficits will increase in severity in the state of Veracruz in a wide inland arc from the Gulf of Mexico. Deficits are also forecast during this period for eastern Jamaica and in Haiti. Moderate deficits are forecast to emerge in Guatemala and El Salvador.
For more information contact info@isciences.com.
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