South East Coast (NSW)
October 2017 Summary
Rainfall was average or higher than average across 92% of the area. It was mainly very much above average in the north. Mean rainfall was 104 mm, 46% higher than the 1900 to 2016 mean of 71 mm for October.
Streamflows were variable across the drainage division with high flows dominant in the north. Myrtle Creek at Rappville had the second highest streamflows for October since 1980 due to high rainfall. Moonan Brook at Moonan Brook and Clyde River at Brooman had the third lowest streamflow for October since 1980.
Median streamflow salinities varied between 251 and 3546 microSiemens/cm. Streamflows were high quality or fresh for 33% of the sites and brackish for 33% of the sites. Bayswater Creek at Liddell had the highest salinity of all sites.
During October, storage volumes increased in one system, decreased in four and remained stable in one. By the end of the month, the volume of water stored was 85% of the total accessible capacity, a decrease of 8% from the previous year.
|Rainfall decile group||Percentage of area|
|Highest on record since 1900||Less than 1%|
|Very much above average||26%|
|Very much below average||Less than 1%|
|Lowest on record since 1900||0%|
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