Powerful winds attaining velocities of approximately 155km/h (96mph) have caused around 90,000 households lacking electricity and led agencies to call off more than 100 flights, based on local media.
The gales are affecting the entire South Island and southern sections of the North Island, according to the national weather agency.
The nation's agencies have announced rare high-level wind alerts - the most severe warning - in core zones such as Canterbury and Wellington.
Locals have been urged to avoid going outside, stay off roads, and make arrangements for more electricity and network failures.
Extensive Damage and Crisis Response
The power cut is primarily influencing households predominantly in the South Island, though officials report that energy was being gradually reinstated.
Domestic outlets have indicated that in various locations structures have suffered roof damage, while power lines and trees have been toppled by the gusts.
Across Wellington, a person was lost his life after being hit by a wooden fragment at a frequent walking route on Tuesday.
Additionally in the city, a woman was pushed toward moving cars on a road by a powerful blast, in a moment that was captured in a viral dashcam video.
Aircraft services in and out of the urban area have been cancelled because of the winds, while certain highways and community centers are also closed.
Simultaneously authorities in Canterbury have announced a state of emergency, to assist recovery activities.
Strike Action During Severe Weather
These intense gusts on this day come as tens of thousands of educators, medical professionals and government employees are engaged in what has been termed a "significant labor action", requesting better pay and working conditions.
But the intense climate has pressured them to change various scheduled activities, with several external protests relocated inside or cancelled.
Like conditions are affecting Australia, ushering in a period of extreme heat to the remote areas.
Authorities have declared flame prohibitions for apprehension regarding forest fires.
