Monthly Water Update

small map representing the district South East Coast (NSW)

South East Coast (NSW)

March 2019 Summary

Rainfall was average or higher than average across 92 per cent of the area. Mean rainfall was 122 mm, 5 per cent higher than the long-term mean of 116 mm for March.

Streamflow was lower than average (including lowest on record) for 70 per cent of the sites, mainly in the north and central north. At six sites streamflows were lowest for March since 1980. However,due to wet catchment conditions in the central west, the monitoring site at Goulburn River at Kerrabee had the fourth highest streamflow for March since 1980.

Median streamflow salinity (electrical conductivity) varied between sites from 326 to 2799 μS/cm. Streamflow was fresh or better quality for 43 per cent of the sites and brackish for 14 per cent of the sites. Wybong Creek at Wybong had the highest salinity of all sites.

During March, accessible volumes increased in one storage system, decreased in two and remained stable in two. By the end of the month, the volume of water stored was 56 per cent of the total accessible capacity, a decrease of 18 per cent from the same time last year.

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Rainfall

map visualising rainfall details

Streamflow

map visualising streamflow details

Streamflow salinity

map visualising salinity details

Water storages

map visualising storage details

Rainfall

map visualising rainfall details for South East Coast (NSW)

Rainfall statistics

Rainfall decile group Percentage of area
Highest on record since 1900 0%
Very much above average 8%
Above average 33%
Average 51%
Below average 7%
Very much below average 0%
Lowest on record since 1900 0%

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