Exceptional water deficits that have dominated southern Australia are expected to disappear, but deficits are forecast for northern Australia, the southwest, the southeast, and Tasmania. These deficits may be intense in Tasmania and in pockets of other aforementioned areas. Moderate deficits are expected along the Darling, Lachlan, and Macquarie Rivers in New South Wales. Surpluses will shrink but persist in the Mackenzie River region of Queensland and in southwest Kimberley region of Western Australia.
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A transition away from significant water deficit is forecast for mainland Australia. Exceptional deficits will shrink considerably, retreating to Channel Country in central Australia. However, intense deficits are forecast for western Tasmania, coastal Victoria, Darwin, and the southeastern tip of Western Australia. Moderate deficits are forecast for the remainder of New South Wales, much of South Australia, Northern Territory, and much of the northern half of Western Australia. Moderate deficits are forecast for North Island New Zealand, and New Caledonia.
Widespread exceptional water deficits from Northern Territory into Queensland are expected to dissipate. However, intense deficit conditions will persist through September in the southwestern extents of Western Australia, Darwin, Tasmania, coastal Victoria into New South Wales, and New Caledonia, and may persist into early 2018 from Perth south. Observed surpluses in the northwest and eastern Queensland will moderate but persist through December.
Though there are several regions with a July forecast of significant precipitation anomalies - India's Western Ghats will be much drier than normal and northern Argentina will be much wetter - the temperature forecast has more severe and widespread anomalies. The African Sahel, Saudi Arabia, and Mongolia are among the numerous regions forecast to see much warmer than normal temperatures.
Water deficits are forecast to linger for the next six months across parts of northern Australia – particularly Arnhem Land and along the Gulf of Carpentaria – and also from Perth southward; in Tasmania; on North Island, New Zealand; and in New Caledonia. A transition from moderate deficits to moderate surpluses in the Darling and Murray Rivers and their tributaries is forecast from August on.
The forecast through August 2016 indicates a predominance of water surpluses in the north and along central rivers. Exceptional drought is forecast to persist in Tasmania, Victoria, southern South Australia, and from Perth southward for much of the forecast period. The persistence of moderate drought in northern South Island, New Zealand and in North Island is also in the forecast.