The forecast through September indicates nearly normal water conditions in northern Mexico with some mild deficits in Baja and moderate surpluses in northeastern Sonora, northern Coahuila, and northern San Luis Potosí. Moderate to exceptional deficits are forecast from Guanajuato through Chiapas. Deficits are expected in central Guatemala, Honduras, El Salvador, and Haiti. Moderate surpluses are forecast for southern Nicaragua and central Panama.
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In the next few months, exceptional water deficits will retreat in northwestern Mexico but persist in southern Baja and emerge in Nayarit. Severe deficits are forecast in the north-central states and along the Rio Grande. Some pockets of surplus are expected in southern Mexico and northern Guatemala, and more intense surpluses in Honduras, Nicaragua, and Costa Rica. Severe deficit is forecast for western Cuba and the Bahamas. After April, deficits will downgrade in southern Baja and surpluses will emerge in western Mexico from Durango into Oaxaca.
Intense water surpluses are forecast to persist through May in Honduras, Nicaragua, northern Costa Rica, and Jamaica. In the near-term, exceptional deficits across northwestern Mexico will moderate but severe deficits will emerge further south coast-to-coast from Jalisco through Veracruz and also in Oaxaca. Deficits in western Cuba will moderate. After February intense deficits will emerge in southern Baja and Nayarit, Mexico but much of southern Mexico will return to nearly normal water conditions with scattered pockets of surplus.
Exceptional water deficits in Cuba are forecast to retreat through December, and moderate to severe deficits are forecast for Tamaulipas, Mexico, and other pockets across the north. The extent of exceptional surpluses in Central America is expected to shrink, but surpluses remain in the forecast and may be especially intense in Honduras. After December moderate deficits will continue to emerge in northern Mexico with more severe deficits in Tamaulipas. Surpluses will persist in Central America but will begin to transition to deficits in El Salvador.
Water deficits are forecast to continue in much of Mexico, increasing in extent and severity through February 2018. For the next few months exceptional deficits are forecast in Nayarit, along with deficits of varying severity in other states including Hidalgo, Michoacán, Sinaloa, and Tamaulipas. Surpluses in Central America are expected diminish but will remain in the forecast through November in Honduras, Nicaragua, Costa Rica, and Panama.
Regions forecast to have significant water deficits for the 12-month period from June 2017 through May 2018 include: Montana (US), Nayarit (Mexico), Amapá (Brazil), Italy, the Arabian Peninsula, Madhya Pradesh and Chhattisgarh (India), Cambodia, Mongolia, and Tasmania (Australia). Water surpluses are forecast for: US Gulf Coast, La Pampa (Argentina), Tanzania, Bangladesh, Tripura and Mizoram (India), western Myanmar, Laos, Jiangxi and Guangxi (China), and Transvolga (Russia). This Watch List is based on ISciences Water Security Indicator Model (WSIM) Global Water Monitor and Forecast issued 8 September 2017.
The forecast through March indicates scattered moderate water deficits throughout much of Mexico with pockets of exceptional deficits in the south and the Yucatan Peninsula. Deficits will persist in Guatemala and emerge in eastern Jamaica. Surpluses are forecast for eastern Honduras, Nicaragua, Costa Rica, Panama, and Haiti.
Water deficits of modest severity are forecast throughout many parts of Mexico over the next six months with pockets of exceptional deficits in Oaxaca, Yucatán, Guerrero, Michoacán, western Jalisco, and Nayarit. Moderate to severe deficits are forecast to persist in western Cuba and emerge in eastern Cuba and in Jamaica through February. Deficits will persist in Guatemala; surpluses will persist in Honduras, Nicaragua, and Costa Rica but may transition to both surplus and deficit.
Regions likely to have significant water deficits for the 12-month period from September 2016 through August 2017 include: the US South; Chile; Scandinavia; northern Africa, southern Somalia, and South Africa; the Middle East; southern India; Cambodia; and northern Russia. Water surpluses are forecast for: southern Minnesota, Nicaragua, Kazakhstan, Bangladesh, western Myanmar, Laos, Vietnam, and Jiangsu and Shanghai, China This watch list is based on ISciences Water Security Indicator Model (WSIM) Global Water Monitor and Forecast issued 6 December 2016.
Mexico, Central America, & the Caribbean: Water deficits forecast for southern Mexico, surpluses in Nicaragua
Water deficits of varying severity are forecast throughout much of Mexico from November through January, with pockets of exceptional deficit in Oaxaca. Deficits will persist in Guatemala, and surpluses are forecast in eastern Honduras, Nicaragua, and northern Costa Rica. From February through April deficits in across northern Mexico will diminish, but moderate to exceptional deficits will persist in the southern states of Michoacán, Guerrero, Oaxaca, and parts of the Yucatán. Surpluses will persist in parts of Honduras and Nicaragua.