Major Flood Warning Issued for Mary River Catchment: Tiaro, Gympie, and Maryborough Affected

Alert Details

The Australian Government Bureau of Meteorology (BOM) has issued a Major Flood Warning (IDQ20790) for the Mary River catchment. This is the ninth warning issued for this event, following heavy to locally intense rainfall that began Friday evening. While rainfall has eased since Monday evening, significant flooding continues across multiple locations throughout the catchment.

Affected Areas

The warning covers the Mary River catchment in Queensland, specifically impacting the following regions:

• Major Flooding: Tiaro
• Moderate Flooding: Gympie and Miva
• Minor Flooding: Maryborough (Portside), Dagun Pocket, Six Mile Creek, and Tinana Creek
• Upstream Impacts: Munna Creek at Marodian is experiencing near major flooding.

What You Should Do

Residents in the affected areas are advised to take the following safety precautions:

• Do not drive, walk, swim, or play in floodwater as it is dangerous.
• Stay away from flooded drains, rivers, streams, and waterways.
• Obey all road closure signs.
• Plan ahead to avoid travel through flooded zones.

Expected Conditions

• Tiaro: Currently at 12.79 meters and falling with major flooding. A prolonged major flood peak near 13.50 meters is expected overnight Tuesday into Wednesday.
• Gympie: Currently at 12.46 meters and steady. It is expected to peak near 12.50 meters Tuesday afternoon and remain above the moderate flood level (12.00 m) overnight into Wednesday.
• Miva: Currently at 13.93 meters and falling; expected to remain above the moderate flood level (9.50 m) through Wednesday.
• Maryborough (Portside): Currently at 5.25 meters and steady; a minor flood peak near 5.60 meters is forecast for Wednesday morning.
• Dagun Pocket: Estimated to remain above the minor flood level (7.00 m) for the remainder of Tuesday and into Wednesday.

Timeline

The alert was issued at 3:19 pm AEST on Tuesday, March 10, 2026. Flooding is expected to be prolonged, with peaks occurring overnight Tuesday and into Wednesday morning. While no significant rainfall is forecast over the next few days, upstream flows from Munna Creek may cause further small rises in river levels.