The forecast through June indicates that intense water deficits will emerge throughout much of India south and west of the Gangetic Plain. Intense surpluses are forecast in northern India, northern Pakistan, and much of Afghanistan. Anomalies will reach exceptional intensity in many of these regions. Deficits will emerge in southern Afghanistan and will be severe in the southwest. Surpluses are forecast in Nepal, Bangladesh along the Padma River and in the northeast, and nearby regions of India.
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Through October, exceptional water deficits will dominate Afghanistan’s west and northwest. In India, moderate deficits will cover much of the southern two-thirds of the country with more intense deficits in western Telangana, Karnataka, southeastern Andhra Pradesh, Tamil Nadu, and central Chhattisgarh. Surpluses will downgrade but remain intense in Bangladesh, and will shrink and moderate in Nepal, though remaining exceptional along the Gandaki River.
Through September, exceptional water deficits will increase in Afghanistan, reaching the southern border to dominate roughly two-thirds of the country. Deficits in southern Pakistan are expected to shrink and moderate; moderate surpluses are forecast along the Indus River in the north. In India, primarily moderate deficits will persist in a wide band across the center of the country, but may be more intense in Madhya Pradesh, Chhattisgarh, Jharkhand, and Odisha. Deficits will increase and intensify in southern India. Surpluses in Bangladesh will shrink and downgrade.
Exceptional water deficits are forecast to persist in Afghanistan, retreating slightly in the north but increasing in the south. Pakistan should get a reprieve as intense deficits diminish considerably, leaving moderate to severe conditions in western Baluchistan. India will transition out of widespread deficit to milder conditions, with moderate deficits in the south and more severe deficits in the Far Northeast, particularly Assam. Surpluses will downgrade to moderate in West Bengal, and will shrink and downgrade in Bangladesh while remaining fairly intense, especially in Dhaka Division.
Exceptional water deficits will remain widespread in Afghanistan, while decreasing slightly. Deficits in Pakistan will generally moderate. India will transition from widespread water deficits to milder conditions. However, exceptional deficits are forecast surrounding Chandigarh, moderate deficits in Rajasthan, and intense deficits in the Far Northeast. Surpluses are expected in Jammu and Kashmir, northern Odisha, West Bengal, and along the Tapi River. Intense surpluses are forecast for the Gandaki River in Nepal. Moderate to extreme surpluses are forecast for northern Bangladesh.
Regions forecast to have significant water deficits for the 12-month period from February 2018 through January 2019 include: Brazil, southern Venezuela, Libya, Egypt, Gabon, Finland, Saudi Arabia, and Afghanistan. Areas with a forecast of significant water surplus include: Idaho and western Montana (US), southeastern British Columbia (Canada), Tanzania, Kenya, Spain, Hungary, southern Romania, and eastern Ukraine. This Watch List is based on ISciences Water Security Indicator Model (WSIM) run on 9 May 2018.
India will transition out of widespread water deficit except in Madhya Pradesh where exceptional deficit is forecast through June. Surplus is forecast in western Andhra Pradesh, India’s southern tip, Odisha, Gujarat, the far north, the Ganges watershed, the Narmada River, central Nepal, and Bangladesh. Intense deficits will continue to emerge in Afghanistan, but diminish in Pakistan except for Karachi where conditions will be exceptional. After June, intense deficits will persist in Afghanistan while anomalies elsewhere in South Asia are expected to be relatively modest.
Through May, intense water deficits are forecast for India’s northern half, moderate deficits in the south, with exceptional conditions in Karnataka along the Tungabhadra River. Intense surpluses are forecast for Jammu and Kashmir, West Bengal, and the western Penner River Basin in India, as well as Bangladesh and Nepal. Surpluses of lesser severity are forecast for western Maharashtra. Intense deficits are forecast for Afghanistan and southern Pakistan. After May, deficits in India will be mild in the north, moderate in the south, and mild surpluses will emerge across the middle.
Intense water deficits will persist in central India through April, after which a transition to surplus is forecast stretching coast to coast across the country’s middle. Until the transition, deficits will be extreme in Madhya Pradesh, western Chhattisgarh, western Karnataka, and eastern Andhra Pradesh, and moderate deficits will emerge in Odisha, Telangana, and southern Tamil Nadu. Intense surplus will persist in Bangladesh, nearby Indian states, and Nepal. Deficits in Afghanistan will downgrade but persist, as will deficits in northern Sri Lanka.
The forecast through September indicates the emergence of moderate to extreme water deficits throughout much of India, which may be most intense from Madhya Pradesh to Odisha, and from southern Maharashtra down through Karnataka into Tamil Nadu. Severe to exceptional deficits are expected to persist in southwestern Afghanistan. Surpluses are forecast east of Kabul, Afghanistan, along the Indus River north of Islamabad, northeastern Jammu and Kashmir, along the Gandaki River in Nepal, and in Bangladesh. From October through December primarily moderate deficits are forecast for India’s northern half, and near-normal conditions in the south. In early 2018 intense deficits may develop in Gujarat and Madhya Pradesh.