Intense gales hitting speeds of as high as 155km/h (96mph) have left nearly 90,000 properties lacking electricity and compelled authorities to cancel over 100 air travel services, based on domestic outlets.
These gusts are impacting the complete southern region and southern sections of the North Island, according to the national weather agency.
The nation's agencies have released uncommon red wind warnings - the top caution category - in core zones including Wellington and Canterbury.
People have been urged to stay indoors, refrain from journeys, and get ready for additional electricity and network failures.
Extensive Destruction and Crisis Response
The power cut is primarily influencing homes predominantly in the South Island, though officials state that energy was being gradually reinstated.
Regional news have stated that in certain areas structures have suffered roof damage, while utility poles and vegetation have been toppled by the gales.
Within the capital, a man was fatally injured after being struck by a wooden fragment at a well-known hiking path on earlier this week.
Also in the capital, a woman was pushed toward oncoming traffic on a thoroughfare by a intensive burst, in a event that was recorded in a widely shared car camera footage.
Air travel in and out of the city have been halted because of the winds, and some roads and libraries are shut down.
At the same time Canterbury officials have issued a crisis declaration, to support emergency management operations.
Strike Action During Extreme Conditions
These intense gusts on Thursday come as many of teachers, doctors and other public workers take part in what has been called a "major walkout", calling for improved salaries and workplace environments.
However the extreme weather has compelled them to change certain arrangements, with several external protests relocated inside or abandoned.
Comparable winds are also sweeping the neighboring country, ushering in a high-temperature event to the country's outback.
Agencies have announced burning restrictions for apprehension regarding wildfires.
