Part of New Zealand’s South Island has been cut off after days of torrential rains washed away roads and forced 2,000 people to evacuate, and as the national weather authority, MetService, issued its first ever red weather warning.
The flooding across the flat agricultural plains of Southland, in the island’s southernmost end, came a day after hikers and tourists were evacuated from another part of the region, Fiordland, where more than a meter of rain had fallen in less than three days.
Lewis Ferris at MetService said the storms had generated its first red warning, a new alert the agency created in May last year.
Photo: AP/NEWSHUB
“The difference between the orange and red warnings is the impact on people,” he said. “We saw a road washed out, we saw people isolated. There was a real risk to communities given the impact on the roading network.”
In Southland, reports emerged of farmers trying to herd livestock to higher ground using a jet ski or kayak.
“There will be stock losses. Even with prior warning, there’s really nowhere they can go,” civil defense official Neville Cook said.
In the township of Mataura, the floodwaters are inching closer to a paper mill where a chemical called ouvea premix is stored, which could release toxic ammonia gas if it comes into contact with water, authorities said.
The gas — harmful to people and the environment — would likely be released into the floodwaters, though emergency management authorities hope it would be diluted by the water.
Police yesterday led evacuations across the region, including of the entire towns of Mataura and Wynden, and much of the town of Gore.
Those living on higher ground in Gore were allowed to stay, but should expect to be without power or water until today, emergency management officials said.
Gore, which flooded after the Mataura River burst its banks, had been deluged by four times the amount of rain it would usually see at this time of year, Ferris said.
More than 70mm of rain fell on Tuesday.
Emergency management officials in Southland, one of New Zealand’s largest and most sparsely populated regions, urged residents on social media to leave their homes as the waters continued to rise yesterday afternoon.
“Don’t be fooled by the blue skies, the impacts are significant and people shouldn’t be complacent,” said a post on the Emergency Management Southland Facebook page, referring to the sunny, clear weather in the region even as the swollen rivers burst their banks.
Between 200 and 300 people were staying in emergency centers in towns that were unaffected by the flooding, Cook said.
Others were staying in hotels and motels in the region.
“People have been opening their businesses,” Southland Mayor Gary Tong said. “It happens every time, it’s fantastic.”
However, some in the area could face a long recovery.
Farmers had been given enough warning to move their stock to higher ground, Tong said, adding: “I understand some of those areas may be inundated.”
A state of emergency was called for the region on Tuesday, after 100 hikers and about 70 people in vehicles were stranded by flooding and road closures in the picturesque tourist area of Fiordland. Eight helicopters flew over the bush trails to find and rescue those trapped.
Nearly 200 tourists were also cut off in the township of Milford Sounds when floods caused damage to the highway. Those people were being evacuated by helicopter yesterday, officials said.
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