Monthly Water Update

small map representing the district South Australian Gulf

South Australian Gulf

October 2017 Summary

Rainfall was average or lower than average across 99% of the area. Mean rainfall was 15 mm, 42% lower than the 1900 to 2016 mean of 26 mm for October.

Streamflows were lower than average for 64% of the sites, mainly to the north of Adelaide. Hindmarsh River at Hindmarsh Valley Reservoir Offtake Weir had the fourth highest streamflow for October since 1980 due to flow regulations.

Median streamflow salinities varied between 830 and 6480 microSiemens/cm. Streamflows were brackish for 33% of the sites. Broughton River at Mooroola had the highest salinity of all sites.

During October, the total storage volume decreased by 4%. By the end of the month, the volume of water stored was 85% of the total accessible capacity, a decrease of 12% from the previous 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 Australian Gulf

Rainfall statistics

Rainfall decile group Percentage of area
Highest on record since 1900 0%
Very much above average 0%
Above average Less than 1%
Average 62%
Below average 37%
Very much below average 0%
Lowest on record since 1900 0%

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