Australian Government Bureau of Meteorology, National Water Operations Final Flood Warning For The Onkaparinga River Issued at 10:01 AM ACST on Thursday 18 June 2026 Flood Warning Number: 2 FLOODING IS NO LONGER EXPECTED AT OAKBANK Moderate rainfall totals have been recorded over the Onkaparinga River catchment over the last few days, causing small river and creek rises. Flooding is no longer expected along the upper Onkaparinga River at Oakbank. Upper Onkaparinga River above Verdun: Flooding is no longer expected along the upper Onkaparinga River above Verdun. The Onkaparinga River at Oakbank is currently at 0.25 m and steady, below the minor flood level. The Onkaparinga River at Oakbank is expected to remain below the minor flood level (1.17 m). Flood 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. Check the ABC and local media for updates. The situation can change quickly, so stay informed. For local emergency management warnings and advice visit www.ses.sa.gov.au/incidents-and-warnings/incidents-and-warnings-map/.} For emergency assistance call SES on telephone number 132 500. In life-threatening emergencies, call 000 (triple zero) immediately. Next issue: This is a final warning. No further warnings will be issued for this event. Latest River Heights: Onkaparinga River at Charleston,0.08,steady,7:46 am Thu 18/06/26 Onkaparinga River at Woodside,0.15,steady,9:46 am Thu 18/06/26 Western Branch Creek at Tiers Road,0.03,steady,8:44 am Thu 18/06/26 Lenswood Creek at Swamp Road,0.23,steady,8:32 am Thu 18/06/26 Onkaparinga River at Oakbank,0.25,steady,8:57 am Thu 18/06/26 Onkaparinga River at Verdun,-0.72,steady,9:55 am Thu 18/06/26 Aldgate Creek at Aldgate (Euston Rd),1.36,steady,7:53 am Thu 18/06/26 Onkaparinga River at Houlgraves,3.67,rising,9:55 am Thu 18/06/26 Onkaparinga River at Clarendon Weir,9.12,steady,9:36 am Thu 18/06/26 Onkaparinga River at Old Noarlunga,1.17,steady,9:05 am Thu 18/06/26 This advice is also available by dialling 1300 659 219. Warning, rainfall and river information are available at http://www.bom.gov.au/australia/flood.