The forecast through May indicates the emergence of a vast stretch of extreme to exceptional water deficits in southern and eastern Mongolia and Inner Mongolia, China. Widespread surpluses will downgrade but persist in the Yangtze Basin’s Lower Reaches and in the southern portion of the Middle Reaches. Moderate deficits will emerge in Hainan and conditions in Taiwan will transition to near-normal. Intense deficits will emerge on the Korean Peninsula and will increase in much of Japan.
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Widespread water surpluses will emerge south of the Yangtze River and in the Pearl River watershed over the next few months and may persist through March. Surpluses are also forecast for Sichuan, Qinghai, and Tibet and may persist even longer. Deficits will increase and intensify from western Inner Mongolia through Xinjiang, and moderate to severe deficits will emerge from the North China Plain to the Yangtze River. Extreme surpluses are forecast for southern Japan, and deficits for southern North Korea.
Through September, exceptional water deficits in Mongolia, Inner Mongolia, and southern Xinjiang will diminish considerably, as well as in Southeast China and Taiwan. Moderate to severe deficits will persist in the Southeast with some pockets of exceptional deficit lingering in Hunan. Widespread surpluses will diminish overall, but surpluses of varying severity will persist in the Lower and Middle Reaches of the Yellow River, the Han River Basin, Qinghai, Yunnan, Hainan, and western Tibet.
The extent of exceptional water deficits in Mongolia, Inner Mongolia, and Xinjiang will diminish considerably though widespread deficits of varying severity are expected. Moderate to severe deficits will increase in Northeast China. Moderate surpluses are forecast for much of the Yellow River. Exceptional surpluses in eastern Qinghai will begin to moderate, and surpluses in the Yangtze River Basin will diminish and downgrade. Though exceptional deficits will shrink in Southeast China, intense deficits are forecast. Deficits will downgrade in North Korea and moderate surpluses will expand in South Korea.
Exceptional water deficits in Mongolia and into China will increase. Moderate deficits will continue to emerge in Northeast China and North Korea. Deficits in South Korea will downgrade, though severe conditions will persist around Seoul. In Southeast China, deficits will spread and upgrade in Fujian and Jiangxi, becoming severe, and moderate deficits will emerge along the Yangtze River. Exceptional deficits will increase in Hunan and Guizhou, and deficits in Yunnan will become extreme. Exceptional surplus will persist in the Han River watershed. Moderate surplus is forecast the Huai River.
Widespread intense deficits will emerge in Zhejiang, Fujian, Guangdong, and Taiwan. Widespread intense surpluses are forecast for a vast stretch of the Upper and Middle Yangtze River, with exceptional surpluses in the Han River watershed. Aforementioned deficits may persist through March and surpluses may persist longer. Severe surpluses will continue to emerge along the Middle and Lower Yellow River through December. Surpluses in the western Pearl River watershed and around the Gulf of Tonkin are forecast to diminish slowly through March. Intense surpluses will continue to emerge in eastern Qinghai while intense deficits are forecast in the west.
Recent exceptional deficits in Mongolia, the Korean Peninsula, and Liaoning are expected to moderate in the near term – September through November. Widespread surpluses are expected to persist in southern China from Poyang Lake in Jiangxi southwest through Hunan into Guangxi and Yunnan, and the western Pearl River Delta, though the extent of exceptional surpluses will diminish considerably. The coastal southeast will transition from surplus to moderate deficit, a trend which is forecast to continue through May. After November, surpluses in Jiangxi through Yunnan will continue to diminish.
The September Outlook indicates much warmer than normal temperatures - conditions we'd expect to see once in 20 to 40 years - in many regions of the world including India's southern half, coastal West Africa, and the eastern Amazon Basin. Much drier than normal conditions are forecast for central India.
A return to near-normal water conditions is forecast for Southeast China from May through July, a change from surpluses observed in prior months. Deficits of varying severity are forecast for Mongolia; western Inner Mongolia, Guangdong, and Yunnan, China; and northern Japan. Surpluses are forecast in Qinghai and in a wide north/south swatch of central Tibet. The forecast for August through October shows a significant retreat of water anomalies in China’s eastern half, with some moderate deficits in Guizhou, Sichuan, and coastal Guangdong.
From March through May water deficits are forecast to persist in southern Mongolia; western Inner Mongolia, the Tarim Basin and eastern Dzungaria regions of southern Xinjiang, and southern Liaoning in China; and Hokkaido, Japan. Deficits are expected to emerge in southeast China from Zhejiang through eastern Yunnan, and in Taiwan, South Korea, and eastern Honshu, Japan. Moderate deficits will persist in southern Shaanxi and eastern Sichuan, and may become severe along the Han River. Surplus conditions are expected to persist in Jiangsu.