Intense winds reaching speeds of approximately 155km/h (96mph) have left nearly 90,000 homes without power and forced agencies to call off in excess of 100 air travel services, based on local media.
The gales are influencing the complete South Island and lower areas of the northern region, as stated by the country's meteorological service.
New Zealand authorities have released rare severe gust advisories - the highest alert level - in core zones including these major districts.
Locals have been urged to stay indoors, stay off roads, and prepare for additional electricity and network failures.
Widespread Impact and Crisis Response
The power cut seems to be impacting residences predominantly in the southern region, though officials report that energy was being gradually reinstated.
Regional news have reported that in certain areas structures have suffered roof damage, and power lines and trees have been toppled by the gales.
Across Wellington, a man was killed after being hit by a wooden fragment at a well-known hiking path on earlier this week.
Additionally in the city, a woman was pushed toward moving cars on a road by a intensive burst, in a incident that was captured in a widely shared car camera footage.
Aircraft services to and from the metropolis have been suspended due to the gusts, while certain highways and community centers are not operating.
Simultaneously authorities in Canterbury have announced a crisis declaration, to assist disaster response efforts.
Labor Protests During Harsh Conditions
The powerful gales on Thursday come as numerous of teachers, doctors and other public workers are engaged in what has been termed a "significant labor action", requesting higher wages and enhanced employment terms.
But the severe conditions has forced them to modify various scheduled activities, with some outdoor rallies moved indoors or called off.
Similar gusts are affecting the neighboring country, bringing a heatwave to the nation's interior regions.
Agencies have declared burning restrictions for apprehension regarding wildfires.
