Severe gusts reaching speeds of approximately 155km/h (96mph) have left approximately 90,000 homes experiencing outages and forced authorities to cancel more than 100 air travel services, according to regional news sources.
The gales are affecting the complete South Island and southern sections of the northern region, according to the weather forecasting body.
Officials in New Zealand have released rare high-level wind alerts - the top caution category - in central regions encompassing these major districts.
Residents have been encouraged to remain inside, refrain from journeys, and make arrangements for more utility disruptions.
Extensive Damage and Crisis Response
The electricity loss seems to be impacting households mainly in the southern region, though agencies report that energy was being restored progressively.
Domestic outlets have indicated that in some places roofs have been ripped off houses, while utility poles and vegetation have been toppled by the winds.
Across Wellington, a man was killed after being impacted by a falling limb at a well-known hiking path on Tuesday.
Meanwhile in Wellington, a individual was pushed toward approaching vehicles on a street by a intensive burst, in a moment that was captured in a viral dashcam video.
Aircraft services to and from the metropolis have been cancelled due to the weather, and certain highways and community centers are also closed.
At the same time local leaders have announced a crisis declaration, to support emergency management operations.
Work Stoppages Amid Severe Conditions
The wild winds on Thursday come as many of school staff, physicians and civil servants are participating in what has been called a "mega strike", requesting improved salaries and workplace environments.
However the severe conditions has pressured them to modify certain arrangements, with various open-air gatherings relocated inside or cancelled.
Like conditions are also sweeping the nearby nation, bringing a period of extreme heat to the country's outback.
Authorities have announced burning restrictions for fear of bushfires.
