Powerful gusts hitting velocities of as high as 155km/h (96mph) have caused nearly 90,000 homes without power and led officials to call off in excess of 100 aircraft departures, based on domestic outlets.
These gusts are influencing the whole South Island and southern sections of the North Island, according to the country's meteorological service.
The nation's agencies have issued infrequent high-level wind alerts - the most severe warning - in key areas including these major districts.
People have been urged to stay indoors, avoid travel, and get ready for additional electricity and network failures.
Extensive Destruction and Emergency Measures
The power cut is primarily influencing households predominantly in the southern region, while authorities report that the electricity supply was being restored progressively.
Domestic outlets have stated that in certain areas structures have suffered roof damage, and utility poles and vegetation have been toppled by the gales.
Within the capital, a man was fatally injured after being impacted by a wooden fragment at a frequent walking route on Tuesday.
Meanwhile in Wellington, a individual was swept into oncoming traffic on a road by a intensive burst, in a event that was captured in a viral dashcam video.
Flights entering and leaving the city have been suspended as a result of the gusts, whereas various routes and public facilities are also closed.
At the same time local leaders have announced a crisis declaration, to facilitate disaster response efforts.
Work Stoppages Alongside Severe Weather
These intense gusts on Thursday come as many of educators, medical professionals and government employees are participating in what has been called a "significant labor action", calling for better pay and working conditions.
However the intense climate has forced them to change various scheduled activities, with some outdoor rallies moved indoors or called off.
Comparable winds are impacting the neighboring country, causing a period of extreme heat to the country's outback.
Agencies have declared flame prohibitions for concern about wildfires.
