Storage Inflow Data

Inflow ML: Inflow volume that storage has received in Mega Litres (ML)

POE: The probability of exceedance describes the likelihood of a specific  volume being exceeded in the given time period. E.g. 90% POE means that 90 out of 100 times we would expect higher inflow volumes. A 50% POE is equal to a median average.

% Average: Mean Average - The value obtained by dividing the sum of all inflow volumes by the number of years data is available. Therefore a 50% mean average does not equal a 50% POE.

The inflow statistics are based on historical flow records that have been adjusted to match climate conditions observed since 1975.

October 2022 Inflows 

Murray, Goulburn & Ovens System Storages

 Table of inflows for October 2022 for the Murray (Dartmouth and Hume), Goulburn (Eildon and Goulburn Weir) & Ovens (Buffalo and William Hovell) Storages.
Monthly Inflow Murray System Goulburn System Ovens System
Dartmouth Dam Hume Dam Lake Eildon Goulburn Weir Lake Buffalo Lake William Hovell
Inflow (ML) 234,861 770,598 598,315 959,636 173,486 86,330
POE 12% 11% New Maximum New Maximum <10% <10%
% of Average 176% 198% 340% 631% 317% 356%

 

Broken, Loddon & Campaspe System Storages

Monthly Inflow Broken System Loddon System Campaspe System
Lake Nillahcootie Cairn Curran Reservoir Tullaroop Reservoir Laanecoorie Reservoir Lake Eppalock
Table of inflows for October 2022 for the Broken (Nillahcootie), Loddon (Cairn Curran, Tullaroop and Laanecoorie) & Campaspe (Eppalock) Storages.
Inflow (ML) 44,657 148,857 77,041 112,595 342,613
POE <10% New Maximum New Maximum <10% New Maximum
% of Average 603% 1200% 1192% 1674% 1875%

 

Year to Date Inflows

Murray, Goulburn & Ovens System Storages

Water year 2022/2023: July 2022 to September 2022 Murray System Goulburn System Ovens System
Dartmouth Dam Hume Dam Lake Eildon Goulburn Weir Lake Buffalo Lake William Hovell
 Table of inflows - Year to date - for the Murray (Dartmouth and Hume), Goulburn (Eildon and Goulburn Weir) & Ovens (Buffalo and William Hovell) Storages.
Inflow (ML) 824,745  2,560,553  1,433,895  1,410,626 487,064 210,871
POE <10%  14%  12%  <10% <10%  11% 
% of Average 169%  173%  164%  201%  192% 171%

 

Broken, Loddon & Campaspe System Storages

Water year 2022/2023: July 2022 to September 2022 Broken System Loddon System Campaspe System
Lake Nillahcootie Cairn Curran Reservoir Tullaroop Reservoir Laanecoorie Reservoir Lake Eppalock
Table of inflows -Year to date - for the Broken (Nillahcootie), Loddon (Cairn Curran, Tullaroop and Laanecoorie) & Campaspe (Eppalock) Storages.
Inflow (ML) 81,062  233,584 120,628 152,096 506,621
POE 12%  <10% <10%  <10% New Maximum
% of Average 201%  309% 352% 424% 456%

 

Inflow data for 2022/2023 against different climate scenarios

Climate Scenarios

The scenarios for different inflow conditions were produced using the following terminology: 

  • Wet Scenario : Inflow volumes that are greater in 10 years out of 100 (10% POE)
  • Average Scenario : Inflow volumes that are greater in 50 years out of 100 (50% POE and not average)
  • Dry Scenario : Inflow volumes that are greater in 90 years out of 100 (90% POE)
  • Extreme Dry Scenario : Inflow volumes that are greater in 99 years out of 100 (99% POE)

In the inflow graphs below actual inflow data is compared to these four scenarios. Inflows are measured in Giga Litres (GL).

Murray System - Dartmouth Dam

Graph of Dartmouth Reservoir Inflows for 2021-22 Actual data until July.
Dartmouth Dam Inflows for 2022/2023. Actual data compared to four climate scenarios.
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
 Table of actual Dartmouth Reservoir inflows for 2022/2023 compared to four climate scenarios
June 2022  71  8.0  18  44  111
July 2022  57  12  24  75  185
August 2022  277  16  36  98  220
September 2022  246  21  61  122  239
October 2022  235  22  43  116  250
November 2022    5.0  26  63  147
December 2022    2.0  15  35  83
January 2023    2.0  7.0  20  47
February 2023    0.0  4.0  13  34
March 2023    1.0  4.0  12  36
April 2023    2.0  4.0  15  40
May 2023    4.0  10  23  68
June 2023    8.0  18  44  111

Murray System - Hume Dam

Graph of Lake Hume Inflows for 2021-22. Actual data until July compared to four climate scenarios.
Hume Dam Inflows for 2022/2023. Actual data compared to four climate scenarios.
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
  Table of actual Hume Dam inflows for 2022/2023 compared to four climate scenarios
June 2022  233  22  48  118  340
July 2022  184  34  69  192  674
August 2022  813  12  103  296  749
September 2022  797  33  157  326  781
October 2022  771  20  100  315  786
November 2022    1.0  68  187  453
December 2022    0.0  34  111  250
January 2023    0.0  16  72  159
February 2023    1.0  12  45  99
March 2023    0.0  8.0  43  113
April 2023    6.0  12  50  138
May 2023    9.0  26  73  196
June 2023    22  48  118  340

Goulburn System - Lake Eildon

Graph of Lake Eildon Inflows for 2021-22. Actual data until July compared to four climate scenarios.
Graph of Lake Eildon Inflows for 2022/2023. Actual data compared to four climate scenarios.
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
 Table of actual Lake Eildon inflows for 2022/2023 compared to four climate scenarios
June 2022  209  11  22  71  239
July 2022  116  12  55  163  404
August 2022  406  16  84  228  489
September 2022  314  20  78  200  424
October 2022  598  10  47  140  349
November 2022    9.0  27  73  180
December 2022    8.0  15  40  107
January 2023    5.0  10  23  48
February 2023    2.0  6.0  15  33
March 2023    0.0  5.0  15  36
April 2023    4.0  7.0  17  43
May 2023    8.0  13  31  102
June 2023    11  22  71  239

Goulburn System - Goulburn Weir

Graph of Goulburn Weir Inflows for 2021-22. Actual data until July compared to four climate scenarios.
Goulburn Weir Inflows for 2022/2023. Actual data compared to four climate scenarios.
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
  Table of actual Goulburn Weir inflows for 2022/2023 compared to four climate scenarios
June 2022  73  13  22  61  219
July 2022  47  22  43  114  336
August 2022  171  8.0  55  164  383
September 2022  233  21  56  151  372
October 2022  960  22  42  110  314
November 2022    11  24  66  184
December 2022    8.0  16  42  104
January 2023    8.0  13  27  58
February 2023    4.0  8.0  19  41
March 2023    5.0  9.0  20  46
April 2023    6.0  10  23  56
May 2023    10  15  37  114
June 2023    13  22  61  219

Ovens System - Lake Buffalo

Graph of Lake Buffalo Inflows for 2021-22. Actual data until July compared to four climate scenarios.
Lake Buffalo Inflows for 2022/2023. Actual data compared to four climate scenarios.
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
  Table of actual Lake Buffalo inflows for 2022/2023 compared to four climate scenarios
June 2022  58  0.0  4.8  22  74
July 2022  30  0.1  11  44  132
August 2022  157  0.1  15  61  147
September 2022  126  0.1  14  55  129
October 2022  173  0.0  9.2  40  118
Novembe  2022    0.0  5.1  22  71
December 2022    0.6  2.6  10  38
January 2023    0.1  1.4  5.1  15
February 2023    0.1  0.6  2.5  8.5
March 2023    0.2  0.5  2.2  10
April 2023    0.2  0.6  2.8  14
May2023    0.3  1.4  6.9  31
June 2023    0.0  4.8  22  74

Ovens System - Lake William Hovell

Graph of Lake William Hovell Inflows for 2021-22. Actual data until July compared to four climate scenarios.
Lake William Hovell Inflows for 2022/2023. Actual data compared to four climate scenarios.
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
  Table of actual Lake William Hovell inflows for 2022/2023 compared to four climate scenarios
June 2022  39  0.2  3.0  12  38
July 2022  16  0.0  6.7  25  61
August 2022  57  0.0  11  34  66
September 2022  52  0.0  9.9  31  58
October 2022  86  0.0  6.5  21  47
November 2022    0.8  3.8  11  27
December 2022    0.9  2.2  5.9  16
January 2023    0.5  1.2  3.1  7.4
February 2023    0.3  0.6  1.6  4.7
March 2023    0.3  0.5  1.5  6.0
April 2023    0.2  0.4  1.8  8.2
May 2023    0.3  1.0  4.1  17
June 2023    0.2  3.0  12  38

Broken System - Lake Nillahcootie

Graph of Lake Nillahcootie Inflows for 2021-22. Actual data until July compared to four climate scenarios.
Lake Nillahcootie Inflows for 2022/2023. Actual data compared to four climate scenarios.
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
Table of actual Lake Nillahcootie inflows for 2022/2023 compared to four climate scenarios
June 2022  6.0  0.0  0.2  1.5  12
July 2022  1.4  0.0  0.6  5.1  25
August 2022  16  0.0  1.1  9.1  28
September 2022  19  0.0  0.7  7.4  24
October 2022  45  0.0  0.2  3.4  19
November 2022    0.0  0.0  1.3  7.0
December 2022    0.0  0.0  0.4  2.6
January 2023    0.0  0.0  0.1  1.1
February 2023    0.0  0.0  0.0  0.7
March 2023    0.0  0.0  0.1  1.2
April 2023    0.0  0.0  0.1  1.4
May 2023    0.0  0.0  0.4  3.2
June 2023    0.0  0.2  1.5  12

Loddon System - Cairn Curran Reservoir

Graph of Cairn Curran Reservoir Inflows for 2021-22. Actual data until July compared to four climate scenarios.
Cairn Curran Reservoir Inflows for 2022/2023. Actual data compared to four climate scenarios.
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
Table of actual Cairn Curran Reservoir inflows for 2022/2023 compared to four climate scenarios
June 2022  3.0  0.0  0.4  3.5  26
July 2022  4.6  0.0  1.1  7.7  42
August 2022  40  0.0  1.9  14  61
September 2022  40  0.0  1.4  11  54
October 2022  149  0.0  0.6  4.8  29
November 2022    0.0  0.0  1.3  10
December 2022    0.0  0.0  0.5  4.0
January 2023    0.0  0.0  0.2  1.6
February 2023    0.0  0.0  0.1  2.2
March 2023    0.0  0.0  0.2  1.7
April 2023    0.0  0.0  0.4  2.4
May 2023    0.0  0.0  1.1  7.4
June 2023    0.0  0.4  3.5  26

Loddon System - Tullaroop Reservoir

Graph of Tullaroop Reservoir Inflows for 2021-22. Actual data until July compared to four climate scenarios.
Tullaroop Reservoir Inflows for 2022/2023. Actual data compared to four climate scenarios.
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
 Table of actual Tullaroop Reservoir inflows for 2022/2023 compared to four climate scenarios
June 2022  0.8  0.0  0.1  1.0  7.3
July 2022  1.4  0.1  0.3  2.2  18
August 2022  19  0.0  0.5  4.9  27
September 2022  23  0.0  0.6  5.4  27
October 2022  77  0.0  0.2  2.3  17
November 2022    0.0  0.1  0.9  6.4
December 2022    0.0  0.1  0.4  2.5
January 2023    0.0  0.0  0.2  1.3
February 2023    0.0  0.0  0.2  1.2
March 2023    0.0  0.1  0.3  1.0
April 2023    0.0  0.1  0.3  0.9
May 2023    0.0  0.1  0.5  2.4
June 2023    0.0  0.1  1.0  7.3

Campaspe System- Lake Eppalock

Graph of Lake Eppalock Inflows for 2021-22. Actual data until July compared to four climate scenarios.
Lake Eppalock Inflows for 2022/2023. Actual data compared to four climate scenarios.
Month Actual Inflow (GL) Extreme Dry Scenario (GL) Dry Scenario (GL) Average Scenario (GL) Wet Scenario (GL)
 Table of actual Lake Eppalock inflows for 2022/2023 compared to four climate scenarios
June 2022  3.5  0.0  0.0  3.2  38
July 2022  3.5  0.0  0.9  11  67
August 2022  46  0.0  2.0  21  85
September 2022  114  0.0  1.5  16  80
October 2022  343  0.0  0.3  6.5  46
November 2022    0.0  0.0  1.6  16
December 2022    0.0  0.0  0.2  5.5
January 2023    0.0  0.0  0.0  1.7
February 2023    0.0  0.0  0.0  2.0
March 2023    0.0  0.0  0.0  2.3
April 2023    0.0  0.0  0.0  2.7
May 2023    0.0  0.0  0.6  8.9
June 2023    0.0  0.0  3.2  38