Powerful gales hitting speeds of as high as 155km/h (96mph) have left nearly 90,000 homes lacking electricity and forced authorities to halt more than 100 flights, according to domestic outlets.
These gusts are affecting the whole southern region and southern parts of the North Island, per the national weather agency.
The nation's agencies have released uncommon high-level wind alerts - the most severe warning - in central regions such as these major districts.
Locals have been urged to remain inside, avoid travel, and make arrangements for additional utility disruptions.
Extensive Damage and Crisis Measures
The electricity loss appears to be affecting residences mainly in the southern region, although officials say that energy was being gradually reinstated.
Local media have reported that in various locations homes have lost their roofs, and power lines and trees have been brought down by the gusts.
Within the capital, a man was killed after being struck by a wooden fragment at a popular trail walking spot on Tuesday.
Also in the capital, a female was swept into moving cars on a street by a intensive burst, in a moment that was filmed in a widely shared car camera footage.
Flights to and from the city have been suspended as a result of the weather, whereas various routes and public facilities are also closed.
At the same time authorities in Canterbury have announced a crisis declaration, to assist emergency management operations.
Work Stoppages Alongside Extreme Weather
The wild winds on this day come as tens of thousands of school staff, physicians and civil servants are participating in what has been described as a "significant labor action", demanding higher wages and enhanced employment terms.
However the intense climate has compelled them to change some of their plans, with various open-air gatherings moved indoors or called off.
Similar gusts are also sweeping the nearby nation, bringing a high-temperature event to the country's outback.
Agencies have issued fire bans for apprehension regarding wildfires.