Flood Warning for Onkaparinga River at Oakbank and Upper Onkaparinga River, SA

Source: BOM · South Australia

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Areazine synthesizes this BoM weather warning directly from BOM's official public data feed. See our methodology for full source attribution and refresh cadence.

Minor flooding possible at Oakbank from early Tuesday morning due to forecast rainfall in the Onkaparinga catchment.

Read this weather record in 30 seconds

Record type
Flood Warning
Affected area
South Australia
Issued
August 24, 2026
Issuing authority
BOM

Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.

Record status: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.

Alert Details

BOM has issued a flood warning (IDS20364) for minor flooding possible along the Onkaparinga River at Oakbank and the Upper Onkaparinga River above Verdun. The warning was issued at 1:44 pm ACST on Monday 24 August 2026 and expires at 7:14 am ACST on Tuesday 25 August 2026.

Affected Areas

The warning covers the Onkaparinga River at Oakbank and the Upper Onkaparinga River above Verdun in South Australia. Current river heights include Onkaparinga River at Oakbank at 0.19 m steady and Onkaparinga River at Verdun at -0.03 m steady.

What You Should Do

Don't drive, walk, swim or play in floodwater. Stay away from flooded drains, rivers, streams and waterways. Obey road closure signs. Plan ahead so you don't drive on flooded roads. Check ABC and local media for updates. For local emergency management warnings visit www.ses.sa.gov.au. For emergency assistance call SES on 132 500. In life-threatening emergencies, call 000.

Expected Conditions

Moderate to possibly locally heavy rainfall is forecast about the Onkaparinga catchment during the remainder of Monday and into Tuesday. This may cause the Onkaparinga River at Oakbank to reach around the minor flood level of 1.17 m from early Tuesday morning.

Timeline

The warning is effective from issue at 1:44 pm ACST Monday 24 August 2026, with minor flooding possible from early Tuesday morning. The next warning will be issued by 10:00 am ACST Tuesday 25 August 2026.

Original source: BOM Official Notice ↗

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Nationwide notices with similar length or severity timing 8

Two Areazine-derived peer sets for this BoM weather warning: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.

Frequently Asked Questions

Common questions about this BoM weather warning.

What is this BoM weather warning about?
Minor flooding possible at Oakbank from early Tuesday morning due to forecast rainfall in the Onkaparinga catchment.
Which agency issued this alert?
This alert was issued by BOM. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects South Australia. Check with BOM for the most current geographic scope.
Where can I find more Weather Warnings updates?
Browse the full Weather Warnings feed on Areazine at areazine.com/au/weather/ for the latest updates from BOM and other agencies.