Severe gales reaching speeds of as high as 155km/h (96mph) have caused nearly 90,000 properties without power and compelled authorities to halt more than 100 air travel services, according to regional news sources.
The gales are impacting the entire South Island and lower areas of the North Island, according to the country's meteorological service.
The nation's agencies have released infrequent red wind warnings - the top caution category - in central regions including these major districts.
Residents have been urged to remain inside, avoid travel, and get ready for more utility disruptions.
Widespread Impact and Emergency Response
This outage appears to be affecting households predominantly in the southern region, though agencies report that the electricity supply was being gradually reinstated.
Regional news have indicated that in various locations structures have suffered roof damage, while utility poles and vegetation have been brought down by the gusts.
Within the capital, a man was fatally injured after being hit by a tree branch at a well-known hiking path 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 filmed in a viral dashcam video.
Aircraft services entering and leaving the metropolis have been halted because of the winds, whereas some roads and libraries are shut down.
Meanwhile authorities in Canterbury have issued a state of emergency, to facilitate emergency management operations.
Strike Action During Severe Weather
These intense gusts on Thursday occur while numerous of teachers, doctors and other public workers are engaged in what has been described as a "major walkout", calling for improved salaries and workplace environments.
However the severe conditions has forced them to change various scheduled activities, with some outdoor rallies moved indoors or cancelled.
Similar gusts are also sweeping the nearby nation, causing a high-temperature event to the country's outback.
Officials have issued flame prohibitions for fear of bushfires.
