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Roads are flooded in the lower part of the South Island, while a storm moves over Auckland.
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MetService has issued a heavy rain advisory for the lower parts of the South Island, including the northern areas of Otago, Dunedin and Clutha until midnight Saturday.
There is also a severe storm watch for much of the North Island.
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According to the forecaster, there is a moderate risk that some storms will worsen, with the possibility of localized showers of 25 to 40 millimeters per hour.
MetService meteorologist Robb Kerr said around 12:30 p.m. M., As the weather event was just beginning, it was expected to get worse during the afternoon.
north island
Heavy rains are falling in the Northland, Auckland and Waikato regions.
A rain gauge on Mill Rd, near Manurewa, recorded about 30 millimeters of rain between 11 am and 12 pm, which was “far higher than all the others.”
Rain is considered “strong” when it exceeds 6mm per hour, Kerr said, and 30mm is a downpour.
Taranaki had seen a total of 20mm of rain at 12:30 pm, while Northland saw 14mm of rain between 12:30 pm and 1:30 pm
There was also some thunder south of Auckland and across the Waikato, he said, however there were only about 10 lightning strikes around 1.30pm.
“Lightning is quite exciting, but it can be quite dangerous,” he added.
The lack of wind meant the storm was moving slowly, which could cause flooding.
“Wherever they go out, they stay.”
south island
The Patearoa Bridge in Central Otago has been damaged by wet weather.
Part of the city’s water supply has now been shut down to prevent water reservoirs from draining in case the water line is damaged.
The Otago Central District Council is organizing a potable water tanker for affected residents.
Parts of northern Otago have seen 100mm of rain in the past 18 hours, Kerr said.
“A few” weather stations in the vicinity had seen close to 60mm in the last 24 hours.
As a result, the Kakanui and Kauru rivers have “grown rapidly,” according to Otago Regional Council spokesperson Sharon Hornblow.
The source of the Taieri basin is also increasing, which could affect the Silverstream and other rivers, causing flooding within the Gordon Rd floodway, it added.
There is flooding in Maheno on State Highway 1, north of Dunedin.
The Pomahaka River in West Otago is also rising steadily.
In Southland, the Waikaia River has overflowed into Piano Flat, a Stuff said the reporter.
“It started to rain here on New Years Eve and it hasn’t stopped – we had 24mm on New Year’s Day and it is expected to rain through Wednesday.”
The road from Kingston to Queenstown is closed.