Southeast 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.
*Drought zone 1 is the LTA in Southeast region.
Rainfall in our Southeast region was below average in June at 52% of the Long Term Average (LTA). Over the last three months (April to June inclusive), our Southeast region has received similar to average conditions of rainfall (99% of the LTA) and effective precipitation (101% of the LTA). As a result, soils are remaining wetter than average, meaning any forthcoming rainfall will provide more contribution to groundwater recharge.
Groundwater levels continue to decline in a slightly higher rate than the LTA but remain above average due to the above average rainfall over the autumn and winter period. Groundwater levels are likely to remain above average over the next six months if rainfall is more than 60% of the LTA. Groundwater levels in our southeast region are currently higher than during the above average conditions experienced in 2013/14 and 2020/21 at the end of June.
Please refer to our Drought Plan for what this means for us and our customers.