Water Resource update

Annual Water Outlook released

GMW released its 2016 Annual Water Outlook on December 1, which shows above-average rainfall took the region's storages from the lowest levels since the Millennium Drought to a position of strong water supply.

The Annual Water Outlook provides a water availability outlook for the remaining months of the 2016-17 season and outlines possible conditions at the start of the 2017-18 season.

Inflows update

Inflows so far this season have been well above average at all storages except for Goulburn Weir, where inflows have been slightly below average.

Conditions were particularly wet during October with storages in the Loddon and Campaspe systems receiving over 400 per cent of the long term average inflows.

Drier conditions in November reduced inflows to below the long term average and at Lake Eppalock and Lake Nillahcootie, below half of the long term average.

Storage
July to November inflow (GL)
Percentage of average
Probability of exceedance
Lake Eildon
1,498
137%
23%
Lake Buffalo
601
202%
<5%
Lake Hume
3,653
201%
8%
Lake Nillahcootie
84
179%
16%
Lake Eppalock
320
255%
9%
Cairn Curran Reservoir
218
247%
8%
Tullaroop Reservoir
110
255%
5%

 

The Bureau of Meteorology’s three month rainfall outlook indicates that the chances of exceeding the median rainfall from January to March are less than 50 per cent for most of eastern Australia.

If rainfall over the next three months is below the median, inflows into the major storages will continue to recede.  

Water Resource update for the Loddon, Campaspe, Broken and Bullarook systems

In early July 2016, GMW held public information sessions in the Loddon, Campaspe, Broken and Bullarook systems to inform customers about supply risks for the year ahead. This included regulated surface water, unregulated systems and groundwater.

Since then, all systems have experienced significant rainfall and inflows and GMW has developed video presentations to provide customers with an update on their water resources for the year ahead.