The northern Victorian Resource Manager has annouced further increases in high reliability water shares, for most zones.
The Murray system moves from eight per cent of HRWS to 15 per cent, while the Goulburn and Loddon systems increase from 35pc to 37pc.
The Campaspe system moves from 32pc HRWS to 40pc HRWS and the Broken system increases from 17pc HRWS to 30pc HRWS.
Seasonal determinations in the Bullarook system remain on 0pc.
Resource Manager Mark Bailey said storage level increases were the main contributor to the increase.
"Flows into the major storages increased the volume of water available for allocation," Dr Bailey said.
"Improved catchment flows downstream of the major storages have effectively filled mid-river storages such as Waranga Basin in the Goulburn system and Lake Victoria in the Murray system.
"Future flows into Lake Eildon and Lake Hume will define seasonal determination improvements in the Goulburn and Murray systems until the midriver storages and catchment flows begin supplying water in August."
Dr Bailey said the latest Bureau of Meteorology seasonal outlook slightly favoured above-average rainfall across the catchment areas during the August to October period.
The rainfall outlook for August and September does not favour wetter or drier conditions over the catchment areas.
"The Bureau has issued a La Nia watch meaning the chance of a La Nia forming is around 50 per cent in late winter or early spring. La Nia events may support rainfall across southeast Australia," Dr Bailey said.
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