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Major storage levels

StorageStorage Level (%)Source data datePrevious Week’s Level (%)2017 Level (%)
Melbourne Water
Thomson60.106 Dec 1860.467.7
Cardinia64.106 Dec 1864.864.3
Upper Yarra59.206 Dec 1859.158.3
Sugarloaf62.106 Dec 1860.989.5
Silvan86.106 Dec 1881.586.2
Tarago83.306 Dec 1883.197.9
Yan Yean80.706 Dec 188189.1
Greenvale95.806 Dec 1898.291
Maroondah79.706 Dec 1880.989.1
O'Shannassy43.406 Dec 1839.4100
All storages62.906 Dec 186369.4
Goulburn-Murray Water
Dartmouth*74.403 Dec 1875.587.8
Hume*42.203 Dec 1843.476
Eildon58.103 Dec 1858.574
Eppalock (Total)50.603 Dec 1851.186.3
Cairn Curran54.103 Dec 1854.176.3
Nillahcootie55.603 Dec 1856.6104.7
Tullaroop50.803 Dec 1851.374.8
Barwon Water
Geelong and district57.704 Dec 1858.772.6
Central Highlands Water
Ballarat and district73.827 Nov 1874.190.5
Coliban Water
Coliban Southern80.403 Dec 1881.394.8
Gippsland Water
Moondarra10003 Dec 18100100
Grampians Wimmera Mallee Water
Grampians storages48.328 Nov 1848.762.7
South Gippsland Water
Major systems98.130 Nov 1897.6101
Southern Rural Water
Glenmaggie76.603 Dec 1876.490
Blue Rock93.603 Dec 1893.299.6
Werribee Basin**46.903 Dec 1847.363.9
Rosslynne26.303 Dec 1826.635.6
Westernport Water
Candowie70.725 Nov 1868.991


In the Melbourne Region:

DateMelbourneUpper YarraThomsonGeelong
Rainfall (mm)Rainfall (mm)Rainfall (mm)Rainfall (mm)
30 Nov
01 Dec
02 Dec 1810.411.09.66.8
03 Dec
04 Dec
05 Dec
06 Dec

In the Melbourne Region:

SiteRainfall (mm) - Total month to dateDecember Rainfall Average (mm)Calculation method (for average)
Melbourne (Olympic Park)10.464.1Mean rainfall (mm) - 30 year period 1981 -2010 from Melbourne Regional Office gauge
Upper Yarra12.884.9As per Melbourne Water
Thomson13.282.5As per Melbourne Water
Geelong7.240.1Mean rainfall (mm) - 28 year period 1983 - 2011 from Grovedale (Geelong Airport) gauge

Seasonal Climate Outlook

The BoM Climate outlook for December to February was issued on 29 November 2018 , identifying:

  • In Victoria, there are roughly equal chances of a wetter or drier three months, i.e., no strong tendency towards a wetter or drier than average season ahead. This pattern is fairly typical of a summer El Niño event.
  • Summer days are very likely to be warmer than average, with probabilities exceeding 70% for almost the entire state. Summer nights are also very likely to be warmer than average.
  • The current positive Indian Ocean Dipole (IOD) has been a significant contributor to dry conditions in southeast Australia. However, models expect the positive IOD to follow its normal seasonal cycle, and decay by early summer.
  • The next update is expected on 20 December 2018 (pm)

View the full outlook on the BOM Website.

Bureau of Meteorology climate outlook image of the southeast of Australia. Chance of exceeding the median Rainfall.

ENSO Outlook

BoM issued the El Niño–Southern Oscillation (ENSO) Outlook on 4 December 2018.

  • The tropical Pacific Ocean remains ENSO-neutral, despite some indicators reaching El Niño levels. As a result, the Bureau's ENSO Outlook remains at El Niño ALERT. The positive Indian Ocean Dipole (IOD) event in the tropical Indian Ocean weakened in the past fortnight.
  • Sea surface temperatures in the tropical Pacific Ocean have now exceeded El Niño thresholds for more than a month. However atmospheric indicators—such as trade winds, cloud patterns, and the Southern Oscillation Index (SOI)—have not reached El Niño levels. This indicates that the tropical ocean and atmosphere are not reinforcing each other and remain uncoupled. This coupling is required to establish and sustain any ENSO event, and is what drives widespread Australian and global impacts.
  • Recently, trade winds in the western Pacific have weakened in association with the Madden–Julian Oscillation. Some models suggest they may remain weakened for at least the next fortnight.
  • International climate models predict sea surface temperatures to remain at or above El Niño levels in December and January. By February, all but one of the eight surveyed models remain above El Niño thresholds. El Niño effects in Australia over summer typically include higher fire risk, greater chance of heatwaves, and fewer tropical cyclones.
  • The positive IOD event which began in early September has weakened, with the most recent value just below positive thresholds. It is likely that the positive IOD is nearing its end—consistent with model outlooks and the IOD's natural cycle. The IOD typically has little influence on Australian climate from December to April.

View the full outlook on the BOM Website.

El Nino watch image from the Bureau of Meteorology

Seasonal Determination

Seasonal determinations are made against water shares to provide allocations in declared systems. In northern Victoria, Goulburn-Murray Water makes the seasonal determinations in the relevant systems, while Southern Rural Water makes the seasonal determinations in the Thomson/Macalister and Bacchus Marsh/Werribee systems.

SystemSeasonal Determination
(as at 4 Dec 2018)
Northern Victoria Seasonal Determinations
Southern Victoria Seasonal Determinations

Additional Information

Weather and Climate

For most up to date information regarding rainfall conditions, seasonal climate outlooks and other climate information, visit the Bureau of Meteorology site.

Groundwater Restrictions

For current groundwater restrictions visit the Goulburn-Murray Water and Southern Rural Water sites.

Seasonal Determinations

Seasonal determinations are made against water shares to provide allocations (Glossary). Visit the Victorian Water Register website for current determinations.

Seasonal Determination Outlook

The Northern Victoria Resource Manager provides information about risk of spill and resource outlook (Glossary) for seasonal determinations.

Water Register and Market Information

The Water Register is a public register of all water-related entitlements in Victoria. It has been designed and built to record water entitlements with integrity and provide crucial information for managing Victoria’s water resources.

You can obtain information about trading water in Victoria at the Victorian Water Register Site. Water products that may be traded in Victoria include water shares, allocations and take and use licences (Glossary)

Urban Water Restrictions

Water restrictions are only applicable to customers on a piped water (reticulated) supply. Urban water corporations publish water restrictions on their websites. Visit the Water in Your Region page to find your urban water corporation via the interactive map.

The Bureau of Meteorology’s Water Restrictions also provides a summary of water restrictions.

Visit the DELWP water restrictions page for more detail on the types of restrictions.

Environmental Water Releases

To learn how water for the environment is being used across the rivers and wetlands of Victoria, visit the Victorian Environmental Water Holder website.

Drought Management

Victorian's Drought Preparedness and Response Framework is being used to support drought-affected communities, Visit the Drought Section of the Agriculture Victoria website for further information.

Page last updated: 07/12/2018