All major irrigation systems across northern Victoria have increased allocations according to the October 1 release of seasonal determinations.
Northern Victoria resource manager Mark Bailey updated seasonal determinations for major irrigation systems across the region.
Dr Bailey said the Murray system moved from 78 per cent of high-reliability water shares to 82 per cent HRWS, the Goulburn system and the Loddon system increased from 70 per cent to 74 per cent and the Broken system increased by 2 per cent to 11 per cent.
The Bullarook system increases from 100 per cent HRWS and 25 per cent low-reliability water shares to 100 per cent HRWS and 51 per cent LRWS.
The Campaspe system remains at 100 per cent HRWS.
Dr Bailey said the modest improvements came from a combination of more water reaching the major storages than was estimated and lower than expected system losses in some systems.
‘‘While flows into the major storages have been marginally higher than anticipated since the last seasonal determination update, they have been well below-average for this time of season and the catchments continue to dry with very little recent rainfall.’’
He said the climate outlook continued to favour drier conditions.
‘‘The latest Bureau of Meteorology seasonal outlook indicates below-average rainfall is more likely across all of northern Victoria during the October to December period,’’ Dr Bailey said.
‘‘The bureau also says there is a 50 per cent chance that an El Niño event will develop in spring and the threshold for a positive Indian Ocean Dipole has been exceeded.’’
Both an El Niño and positive Indian Ocean Dipole typically reduces rainfall in south-eastern Australia.