Intense gusts reaching velocities of up to 155km/h (96mph) have resulted in around 90,000 properties lacking electricity and led officials to halt more than 100 aircraft departures, according to local media.
The gales are impacting the whole southern region and lower areas of the northern region, per the country's meteorological service.
Officials in New Zealand have announced infrequent high-level wind alerts - the top caution category - in central regions including Canterbury and Wellington.
Residents have been urged to remain inside, stay off roads, and make arrangements for additional electricity and network failures.
Extensive Damage and Crisis Response
This outage is primarily influencing homes predominantly in the South Island, although authorities say that the electricity supply was being slowly brought back.
Domestic outlets have indicated that in various locations homes have lost their roofs, whereas power lines and trees have been brought down by the gales.
Within the capital, a individual was lost his life after being impacted by a tree branch at a popular trail walking spot on Tuesday.
Additionally in the city, a woman was swept into approaching vehicles on a street by a strong gust of wind, in a incident that was captured in a viral dashcam video.
Aircraft services in and out of the metropolis have been halted due to the winds, whereas certain highways and community centers are not operating.
Simultaneously authorities in Canterbury have issued a emergency situation, to support recovery activities.
Strike Action Alongside Extreme Conditions
The powerful gales on Thursday come as many of teachers, doctors and other public workers take part in what has been termed a "major walkout", calling for improved salaries and workplace environments.
Yet the severe conditions has forced them to alter certain arrangements, with various open-air gatherings moved indoors or abandoned.
Comparable winds are affecting Australia, bringing a period of extreme heat to the country's outback.
Authorities have announced flame prohibitions for concern about wildfires.
