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Red Heavy Rain Warning Sparks Flooding, Evacuations and Road Closures in Dunedin and Waitaki

7/6/2026, 8:43:20 AM

Flooding, Evacuations and Road Closures

On 6 July 2024, heavy rain hit Dunedin and Waitaki District, causing flooding that closed roads in Mosgiel, Three Mile Hill and Otago Peninsula. An evacuation centre opened at Taieri Bowling Club, sheltering a family of five and residents; Waitaki declared an emergency after 20 evacuations.

Weather System and Red Warning

An advancing low-pressure system delivered a wintry mix of rain and strong winds. MetService issued a red heavy-rain warning for Dunedin and Clutha until 9 a.m. Monday, signalling immediate protective action.

Key Data

MetService logged 100 mm of rain in Dunedin and Oamaru in 24 hours; forecasts project 80–120 mm Monday. Closures include SH 88 (Station Rd–Borlases Rd), SH 87 via Kyeburn, and Three Mile Hill. Flood barriers stand on Surrey Street; sandbag stations operate at Mosgiel Memorial Park and Dunedin Ice Stadium. These measures aim to mitigate overflow.

Immediate Impacts

Council officials urged residents to stay home, avoid travel and use 111 for emergencies. Small landslips were reported on the Otago Peninsula; emergency crews monitored the storm-water system. Authorities also monitored river levels.

Official Statements & Responses

Civil Defence Controller Sandy Graham said the situation could change quickly and bunker would stay operational overnight with staff ready to respond. MetService meteorologist John Law warned the red warning demands immediate action against rivers, flooding and slips. MetService’s Gerard Bellam noted low-pressure front would move north, bringing heavy snow to South Island. The council kept evacuation centre open and provided sandbags.

Conflicting Reports & Gaps

Rainfall is reported as 100 mm recorded versus 80–120 mm forecast; road-closure details vary, and evacuee numbers are unspecified.

Broader Implications & Outlook

The red warning signals life-threatening river rise, flash flooding and landslips that could isolate communities. A heavy-rain watch now covers Southland, strong-wind watches affect Fiordland and the West Coast, and heavy-snow watches target South Canterbury, with snowfall above 800 m expected to exceed 1 m.

Verbatim Quotes

  • “Dunedin City Emergency Management Operations Centre Controller Sandy Graham said the stormwater network was continuing to operate within capacity.” — Sandy Graham, Dunedin City Emergency Management Operations Centre Controller
  • “Advertisement Advertise with NZME “A red warning signifies that people need to act now as immediate action is required to protect people, animals and property from the impact of the weather.” — John Law, MetService meteorologist
  • “We’ve got a big low front that was crossing the South Island yesterday and that’s going to cross the North Island during the course of today,” — Gerard Bellam, MetService meteorologist
  • “We also know the situation can change quickly, so the Civil Defence bunker will continue to operate overnight and we’ll have a team of staff and contractors responding to issues as they emerge,” — Sandy Graham, Civil Defence Controller