Powerful gusts hitting velocities of approximately 155km/h (96mph) have left nearly 90,000 homes without power and compelled agencies to call off more than 100 flights, as reported by regional news sources.
These gusts are influencing the complete South Island and lower areas of the northern region, according to the weather forecasting body.
The nation's agencies have released rare severe gust advisories - the most severe warning - in core zones including these major districts.
Residents have been encouraged to stay indoors, refrain from journeys, and get ready for more utility disruptions.
Widespread Damage and Emergency Response
The electricity loss is primarily influencing homes mainly in the southern region, while authorities state that energy was being restored progressively.
Local media have reported that in some places structures have suffered roof damage, whereas power lines and trees have been knocked down by the gales.
In Wellington, a person was killed after being hit by a wooden fragment at a frequent walking route on Tuesday.
Meanwhile in Wellington, a woman was pushed toward oncoming traffic on a thoroughfare by a powerful blast, in a moment that was recorded in a widely shared car camera footage.
Aircraft services entering and leaving the metropolis have been suspended as a result of the weather, and certain highways and community centers are shut down.
Simultaneously Canterbury officials have issued a emergency situation, to support emergency management operations.
Strike Action Amid Harsh Weather
These intense gusts on Thursday come as many of teachers, doctors and other public workers take part in what has been called a "mega strike", requesting improved salaries and workplace environments.
However the severe conditions has pressured them to alter various scheduled activities, with various open-air gatherings relocated inside or abandoned.
Similar gusts are also sweeping the neighboring country, bringing a heatwave to the nation's interior regions.
Officials have declared flame prohibitions for concern about wildfires.