Powerful gales attaining speeds of as high as 155km/h (96mph) have caused approximately 90,000 households without power and led officials to halt over 100 flights, based on domestic outlets.
These gusts are affecting the entire South Island and southern parts of the North Island, as stated by the weather forecasting body.
The nation's agencies have issued rare severe gust advisories - the highest alert level - in core zones such as Wellington and Canterbury.
Locals have been advised to remain inside, refrain from journeys, and make arrangements for additional utility disruptions.
Extensive Destruction and Crisis Measures
The electricity loss is primarily influencing residences predominantly in the southern region, though authorities report that energy was being slowly brought back.
Regional news have indicated that in certain areas structures have suffered roof damage, while power lines and trees have been toppled by the winds.
In Wellington, a individual was lost his life after being struck by a tree branch at a well-known hiking path on Tuesday.
Also in the capital, a woman was blown onto moving cars on a thoroughfare by a powerful blast, in a incident that was captured in a viral dashcam video.
Air travel to and from the metropolis have been halted due to the gusts, while various routes and public facilities are also closed.
Meanwhile local leaders have declared a crisis declaration, to assist recovery activities.
Strike Action During Severe Weather
The powerful gales on Thursday come as many of teachers, doctors and other public workers are engaged in what has been termed a "mega strike", demanding improved salaries and workplace environments.
Yet the intense climate has pressured them to change various scheduled activities, with some outdoor rallies moved indoors or abandoned.
Similar gusts are impacting the nearby nation, causing a heatwave to the remote areas.
Agencies have issued fire bans for apprehension regarding wildfires.
