25/08/2026
This warning is no longer current. Please refer to the Bureau of Meteorology website for current Bureau of Meteorology warnings, https://www.bom.gov.au/weather-and-climate/warnings-and-alerts?stateName=South%20Australia
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The Bureau of Meteorology has updated a Minor Flood 🌊Warning ⚠️for the Onkaparinga River
Issued at 7:39 am ACST on Tuesday 25 August 2026
Flood warning number: 5
MINOR FLOODING POSSIBLE AT CLARENDON WEIR AND OLD NOARLUNGA FROM EARLY TUESDAY MORNING
Moderate to locally heavy rainfall has been observed across the Onkaparinga catchment since Monday afternoon. This has caused river and creek level rises, and minor flooding is possible along the Onkaparinga River at Clarendon Weir from early Tuesday morning.
Lower Onkaparinga River below Mt Bold Reservoir
River height
Safety advice
* Don't drive, walk, swim or play in floodwater because it is dangerous.
* Stay away from flooded drains, rivers, streams and waterways.
* Obey road closure signs. Plan ahead so you don't drive on flooded roads.
🌊 For flood preparation tips, visit ses.sa.gov.au/flood
☎️ For emergency SES storm or flood assistance, call 132 500
☎️ For life-threatening emergencies, call Triple Zero (000)
⚠️ Warning: https://www.bom.gov.au/warning/flood-warning/IDS20364