Seasonal determinations for 2023/24 update

Monday 17 July, 2023

Outlook for the 2023/24 Season

The outlooks for 2023/24 seasonal determinations are based on historical flow records that have been adjusted to match climate conditions observed since 1975. The outlook scenarios presented are:

  • Wet                  Inflow volumes to major storages that are greater in 10 years out of 100
  • Average          Inflow volumes to major storages that are greater in 50 years out of 100
  • Dry                  Inflow volumes to major storages that are greater in 90 years out of 100
  • Extreme Dry   Inflow volumes to major storages that are greater in 99 years out of 100

The following tables summarise possible high-reliability water share seasonal determinations through the season and include a reference year to help users recognise the possible inflow conditions.

Murray System Outlook for Seasonal Determination of High-Reliability Water Shares

Inflow Conditions Similar inflow season 15 August 2023 16 October 2023 15 December 2023 15 February 2024
Wet 2021/22 100% 100% 100% 100%
Average 2014/15 100% 100% 100% 100%
Dry 2015/16 100% 100% 100% 100%
Extreme Dry 2006/07 89% 91% 92% 94%

Broken System Outlook for Seasonal Determination of High-Reliability Water Shares

Inflow Conditions Similar inflow season 15 August 2023 16 October 2023 15 December 2023 15 February 2024
Wet 2016/17 65% 100% 100% 100%
Average 2021/22 65% 100% 100% 100%
Dry 2018/19 64% 100% 100% 100%
Extreme Dry 2006/07 54% 55% 56% 57%

Seasonal determinations under additional scenarios for each system are available from the Northern Victorian Resource Manager website at www.nvrm.net.au/outlooks

Upcoming Resource Manager Announcements

  • The next 2023/24 seasonal determination announcement will be released on Tuesday August 1, 2023.
  • The risk of spill in the Murray, Goulburn and Campaspe systems will be updated on Thursday August 10, 2023.