Intense gales reaching speeds of approximately 155km/h (96mph) have left approximately 90,000 households without power and forced agencies to cancel over 100 flights, as reported by local media.
The winds are impacting the whole South Island and southern parts of the northern region, as stated by the country's meteorological service.
The nation's agencies have issued infrequent red wind warnings - the highest alert level - in core zones such as Canterbury and Wellington.
People have been advised to stay indoors, avoid travel, and prepare for more electricity and network failures.
This outage is primarily influencing residences mainly in the South Island, although officials report that the electricity supply was being slowly brought back.
Regional news have indicated that in some places structures have suffered roof damage, whereas power lines and trees have been toppled by the winds.
Within the capital, a person was lost his life after being struck by a tree branch at a frequent walking route on Tuesday.
Also in the capital, a individual was blown onto moving cars on a road by a strong gust of wind, in a moment that was captured in a viral dashcam video.
Air travel to and from the city have been halted because of the winds, while certain highways and community centers are shut down.
At the same time Canterbury officials have issued a emergency situation, to facilitate disaster response efforts.
These intense gusts on Thursday come as tens of thousands of educators, medical professionals and government employees are participating in what has been called a "significant labor action", calling for improved salaries and workplace environments.
Yet the extreme weather has forced them to modify some of their plans, with various open-air gatherings moved indoors or abandoned.
Like conditions are also sweeping Australia, causing a heatwave to the remote areas.
Officials have announced fire bans for fear of wildfires.
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