Powerful gusts attaining speeds of up to 155km/h (96mph) have caused nearly 90,000 homes without power and led agencies to cancel in excess of 100 aircraft departures, according to domestic outlets.
The winds are influencing the entire South Island and lower areas of the northern region, per the country's meteorological service.
Officials in New Zealand have released infrequent red wind warnings - the most severe warning - in core zones such as Canterbury and Wellington.
People have been advised to remain inside, avoid travel, and prepare for additional electricity and network failures.
Broad Impact and Emergency Measures
The power cut seems to be impacting residences mostly in the South Island, although officials report that energy was being gradually reinstated.
Local media have reported that in certain areas roofs have been ripped off houses, while utility poles and vegetation have been knocked down by the gusts.
Within the capital, a man was fatally injured after being impacted by a falling limb at a popular trail walking spot on Tuesday.
Also in the capital, a female was blown onto approaching vehicles on a street by a strong gust of wind, in a moment that was filmed in a popular vehicle recording.
Air travel in and out of the urban area have been cancelled due to the gusts, while some roads and libraries are also closed.
Meanwhile authorities in Canterbury have issued a state of emergency, to facilitate emergency management operations.
Labor Protests During Harsh Weather
The wild winds on Thursday come as tens of thousands of teachers, doctors and other public workers take part in what has been described as a "mega strike", requesting better pay and working conditions.
Yet the intense climate has forced them to change various scheduled activities, with various open-air gatherings shifted to interior venues or called off.
Comparable winds are affecting the nearby nation, bringing a high-temperature event to the country's outback.
Officials have announced flame prohibitions for fear of forest fires.
