East Region
*The long term average (LTA) has been calculated statistically, using the long term data record for this hydrograph. The respective drought zones are used as operational triggers, and have been derived using the LTA.
Rainfall in our East region was below average in November at 77% of the Long Term Average (LTA). Over the last three months (September to November inclusive), our East region has received almost average rainfall (96% of the LTA) and effective precipitation (97% of the LTA). Soils wetness (SMD) however is below average, meaning any forthcoming rainfall is likely to contribute less to groundwater recharge.
Groundwater levels have started to increase through September and remain above average due to the above average rainfall over the last recharge period. Groundwater levels are likely to remain above average over the next six months if rainfall is equal or higher than 80% of the LTA. Groundwater levels are currently higher than the above average conditions experienced in 2014 and 2021, but in a lower position than the above average conditions in 2023 at the end of November.
Please refer to our Drought Plan for what this means for us and our customers.